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Records with Subject: Food & Agricultural Processes
Showing records 729 to 753 of 1303. [First] Page: 1 27 28 29 30 31 32 33 34 35 Last
Ultrasound-Assisted Extraction of Semi-Defatted Unripe Genipap (Genipa americana L.): Selective Conditions for the Recovery of Natural Colorants
Grazielle Náthia-Neves, Ádina L. Santana, Juliane Viganó, Julian Martínez, Maria Angela A. Meireles
February 23, 2023 (v1)
Keywords: antioxidants, genipin, geniposide, iridoids, ultrasound-assisted extraction
Ultrasound-assisted extraction (UAE) of semi-defatted unripe genipap (SDG) using supercritical CO2 was performed to enhance the recovery of natural colorant iridoids genipin and geniposide. There are currently few natural sources of iridoids, and their application as colorants is scarce. The UAE resulted in extracts with blue and green colors using water and ethanol, respectively. The highest global yield and genipin content was recovered with water, and the geniposide was significantly recovered with ethanol. With water at 450 W, the UAE raised the maximum global yield (25.50 g/100 g raw material). At 150 W and 7 min, the maximum content of genipin (121.7 mg/g extract) and geniposide (312 mg/g extract) was recovered. The total phenolic content (TPC) and antioxidant capacity with the oxygen reactive antioxidant capacity (ORAC) assay were also high in aqueous extracts. Ethanolic extracts showed high ferric-reducing ability antioxidant potential (FRAP) values. UAE showed an efficient and... [more]
Conventional versus Ritual Slaughter−Ethical Aspects and Meat Quality
Jagoda Żurek, Mariusz Rudy, Magdalena Kachel, Stanisław Rudy
February 23, 2023 (v1)
Keywords: conventional slaughter, halal, kosher, meat quality, ritual slaughter
Social pressure on increased protection and welfare of animals results mainly from the initiative of people living in the urbanized parts of the world. The respect for the right to freedom of religion, which is indisputably one of the fundamental liberal rights, must be taken into account. The right to freedom to religion also includes the right to follow a religion’s dietary recommendations. The aim of the literature analysis was to systematize the knowledge on the ethical aspects and quality of meat obtained from carcasses of animals subjected to conventional and ritual slaughter. Consistent with the importance of ritual slaughter for humans of two major faiths (Islam and Judaism), it is important that scientists be objective when evaluating these practices from an animal welfare and meat quality point of view. To evaluate the welfare of the slaughtered animal, it is necessary to openly discuss ritual slaughter and the improvement of its methods. The quality of meat and the degree of... [more]
Impact of Various Vacuum Impregnation Methods on Viability of Cereal Grains
Zbigniew Kobus, Leszek Rydzak, Tomasz Guz, Marek Domin, Rafał Nadulski, Emilia Osmólska
February 23, 2023 (v1)
Keywords: barley, germination, rye, vacuum impregnation, wheat
Grain viability is of key importance in the production of malt. This paper presents the results of research on the influence of vacuum impregnation of grains of various cereals on theirservice life. One malting barley cultivar, two wheat cultivars, and a rye cultivar mix were tested. The grain was subjected to wet vacuum impregnation and wet vacuum impregnation carried out cyclically under the pressure of 5 kPa. Then, samples of the impregnated grain were sown and its germination capacity was tested every 24 h to 120 h. The control sample was grain soaked under atmospheric pressure. Vacuum impregnation did not cause any significant changes in the germination capacity of the examined cereal varieties. The vacuum-impregnated grain displayed a higher initial water content and germinated faster. It was found that the impregnation did not disturb the internal structure of the grain, indicated by the fact that the most delicate part of the grain, i.e., the embryo, retained its vital function... [more]
Properties of Extruded Snacks Prepared from Corn and Carrot Powder with Ascorbic Acid Addition
Valentina Obradović, Jurislav Babić, Verica Dragović-Uzelac, Antun Jozinović, Đurđica Ačkar, Drago Šubarić
February 23, 2023 (v1)
Keywords: antioxidant power, ascorbic acid, carotenoids, carrot, extrusion
The objective of this research was to investigate the potentiality of carrot powder (CP) utilization at levels 4, 6, or 8% as ingredient of corn snacks and evaluation of the extrusion influence on functionally important ingredients such as carotenoids (color), polyphenols, fiber, fat, and antioxidant activity. The influence of ascorbic acid (AA) as an external source at levels 0.5 and 1% on this particular extrusion was also investigated. A single-screw extruder at two temperature regimes (135/170/170 °C (E1) and 100/150/150 °C (E2)) carried out extrusion. The E1 temperature regime acted favorably on total polyphenol content and crude fiber, but fat preferred the E2 regime. Extrusion, especially the E1 temperature regime, increased the extractability of carotenoids. Ascorbic acid degraded during extrusion, but it still provided protection to carotenoids and color attributes of extrudates. Snacks with increased nutritional and functional value due to carrot powder addition were successf... [more]
Removal of Dissolved Oxygen from Water by Nitrogen Stripping Coupled with Vacuum Degassing in a Rotor−Stator Reactor
Zemeng Zhao, Zhibang Liu, Yang Xiang, Moses Arowo, Lei Shao
February 23, 2023 (v1)
Keywords: correlation, deoxygenation efficiency, mass transfer, rotor–stator reactor, vacuum–N2–H2O–O2 system
Oxygen is a harmful substance in many processes because it can bring out corrosion and oxidation of food. This study aimed to enhance the removal of dissolved oxygen (DO) from water by employing a novel rotor−stator reactor (RSR). The effectiveness of the nitrogen stripping coupled with vacuum degassing technique for the removal of DO from water in the RSR was investigated. The deoxygenation efficiency (η) and the mass transfer coefficient (KLa) were determined under various operating conditions for the rotational speed, liquid volumetric flow rate, gas volumetric flow rate, and vacuum degree. The nitrogen stripping coupled with vacuum degassing technique achieved values for η and KLa of 97.34% and 0.0882 s−1, respectively, which are much higher than those achieved with the vacuum degassing technique alone (η = 89.95% and KLa = 0.0585 s−1). A correlation to predict the KLa was established and the predicted KLa values were in agreement with the experimental values, with deviations gener... [more]
Long-Term Cultivation of a Native Arthrospira platensis (Spirulina) Strain in Pozo Izquierdo (Gran Canaria, Spain): Technical Evidence for a Viable Production of Food-Grade Biomass
Flavio Guidi, Zivan Gojkovic, Marianna Venuleo, Patrícia Alexandra Clemente Janeiro Assunçao, Eduardo Portillo
February 23, 2023 (v1)
Keywords: contaminant control, greenhouse, human consumption, long-term cultivation, medium reuse, raceway ponds, Spirulina
Microalgae cultivation is a promising alternative to traditional agriculture in arid—semi-arid areas. The aim of this study is to assess the viability of long-term cultivation of native Arthrospira platensis in Gran Canaria. Maximum culture productivity (0.08 g/L/day) and optimal concentration range (0.6−0.9 g/L) were firstly determined in 8000 L raceway under a greenhouse. Afterwards, a stable productivity of 0.06 g/L/day (6.0 g/m2/day) was obtained by reusing the culture medium during 26 days of cultivation, with consistent biomass biochemical composition. Outdoor temperature and daily solar irradiation ranged between 17.9−30.7 °C and 79.2−274.8 W/m2, while culture pH and salinity were in the range 9.42−10.77 and 11.2−14.9 g/L, respectively. Protein (>60%), potassium (1.8 g/100 g) and C-phycocyanin (7.2%) content is in the high-range of commercial Spirulina, which makes BEA 1257B promising for food and extraction of natural pigments/antioxidants. The dried biomass complies with inter... [more]
The Role of Oxidative Stress and the Importance of miRNAs as Potential Biomarkers in the Development of Age-Related Macular Degeneration
Malgorzata Mrowicka, Jerzy Mrowicki, Ewa Kucharska, Barbara Smigielska, Jacek Pawel Szaflik, Jerzy Szaflik, Ireneusz Majsterek
February 23, 2023 (v1)
Keywords: age-related macular degeneration, antioxidant capacity, biomarkers, DNA repair genes, microRNAs, oxidative stress
Age-related macular degeneration (AMD) is the primary cause of blindness in developed countries. With the progressive aging of the population, AMD is a significant ophthalmological problem in the population over 50 years of age. The etiology of AMD is known to be based on various biochemical, immunological and molecular pathways and to be influenced by a range of genetic and environmental elements. This review provides an overview of the pathophysiological role of oxidative stress and free radicals in the retina with a special focus on the DNA repair efficiency and enzymatic antioxidant defense. It also presents a correlation between miRNA profile and AMD, and indicates their involvement in inflammation, angiogenesis, increased oxidation of cellular components, enzymatic antioxidant capacity and DNA repair efficiency, which play particularly important roles in AMD pathogenesis. Gene silencing by miRNAs can induce changes in antioxidant enzymes, leading to a complex interplay between re... [more]
PROMANCOA Modular Technology for the Valorization of Mango (Mangifera indica L.) and Cocoa (Theobroma cacao L.) Agricultural Biowastes
Alberto J. Núñez-Sellés, Alejandro J. Abril-González, Marlen Ramil-Mesa
February 23, 2023 (v1)
Keywords: agricultural management, circular economy, cocoa, cosmeceuticals, mango, nutraceuticals
PROMANCOA modular technology (PMT) aims at the development of modular agricultural biowaste valorization of mango (Mangifera indica L.) and cocoa (Theobroma cacao L.) cultivars within the concept of circular economy in agriculture management. The modular design includes four modules: (1) green raw material (GRM) selection and collection, (2) GRM processing, (3) GRM extraction, in order to obtain bioactive green extracts (BGE) and bioactive green ingredients (BGI), and (4) quality control, which lead to formula components for food, feed, nutraceutical and/or cosmeceutical products. PMT was applied to mango stem bark and tree branches, and cocoa pod husk and bean shells, from cultivars of mango and cocoa in provinces of the Dominican Republic (DR). PMT might be applied to other agricultural biowastes, where a potential of value-added BGE/BGI may be present. Alongside the market potential of these bioactive ingredients, the reduction of carbon dioxide and methane emissions of agricultural... [more]
A Mechanistic Model to Assess the Fate of Naphthalene and Benzo(a)pyrene in a Chilean WWTP
Antonia Arroyo, Fabián Provoste, Montserrat Rodríguez, Ana L. Prieto
February 23, 2023 (v1)
Keywords: fate of PAHs in WWTP, mechanistic model of xenobiotics in WWTP, PAHs in biosolids for agriculture, PAHs is wastewater reuse
Polycyclic aromatic hydrocarbons (PAHs) are a family of organic compounds of widespread presence in the environment. They are recalcitrant, ubiquitous, prone to bioaccumulation, and potentially carcinogenic. Effluent from wastewater treatment plants (WWTPs) constitutes a major source of PAHs into water bodies, and their presence should be closely monitored, especially considering the increasing applications of potable and non-potable reuse of treated wastewater worldwide. Modeling the fate and distribution of PAHs in WWTPs is a valuable tool to overcome the complexity and cost of monitoring and quantifying PAHs. A mechanistic model was built to evaluate the fate of PAHs in both water and sludge lines of a Chilean WWTP. Naphthalene and benzo(a)pyrene were used as models of low-MW and high-MW PAHs. As there were no reported experimental data available for the case study, the influent load was determined through a statistical approach based on reported values worldwide. For both naphthale... [more]
Relationship between Total Phenolic Content, Antioxidant Capacity, Fe and Cu Content from Tea Plant Samples at Different Brewing Times
Simona Dobrinas, Alina Soceanu, Viorica Popescu, Ionela Carazeanu Popovici, Daniela Jitariu
February 23, 2023 (v1)
Keywords: DPPH capacity, tea plant infusion, TPC, trace elements
The purpose of this study was to investigate the antioxidant capacity of different tea plant: mint, linden, chamomile, St. John’s wort, green and black tea in relation to total phenolic content. The antioxidant capacity of the tea infusions at different brewing times was determined using DPPH assay while the total phenolic content (TPC) was assessed using the modified Folin-Ciocalteu method. The results showed that there were significant statistical differences in antioxidant capacity depending on infusion time, according to one-way ANOVA analysis. Leaves used as components of tea infusions were analyzed by FAAS for their content of iron and copper in the dry product and in the infusion. The correlation between TPC and DPPH capacity of tea plant infusions was evaluated by Pearson correlation matrix. Total phenolics compounds content was positively and significantly correlated with DPPH capacity for all infusions time. Significant correlation was observed between TPC and the copper conc... [more]
The Effect of Clarithromycin Toxicity on the Growth of Bacterial Communities in Agricultural Soils
Laura Rodríguez-González, Vanesa Santás-Miguel, Claudia Campillo-Cora, Manuel Arias-Estévez, David Fernández-Calviño
February 23, 2023 (v1)
Keywords: human use antibiotic, inhibition, leucine incorporation, macrolide, soil interaction
The presence of antibiotics in different environmental matrices is a growing concern. The introduction of antibiotics into the soil is mainly due to sewage treatment plants. Once in the soil, antibiotics may become toxic to microbial communities and, as a consequence, can pose a risk to the environment and human health. This study evaluates the potential toxicity of the antibiotic clarithromycin (CLA) in relation to the bacterial community of 12 soils with different characteristics. Bacterial community growth was evaluated in soils spiked in the laboratory with different concentrations of CLA after 1, 8, and 42 incubation days. The results indicated that the addition of clarithromycin to the soil may cause toxicity in the bacterial communities of the soil. In addition, it was observed that toxicity decreases between 1 and 8 incubation days, while the bacterial community recovers completely in most soils after 42 incubation days. The results also show that soil pH and effective cation e... [more]
Bispacer Multi-Stage Direct Contact Membrane Distillation System: Analytical and Experimental Study
Morteza Aliabadi, Hassan Ghorashi, Shamim Shokri Motlagh, Seyedeh Fatemeh Nabavi, Seyed Arash Pakzad, Mohamad Hossein Farshidianfar, Anooshiravan Farshidianfar, Farzaneh Mahmoudi, Aliakbar Akbarzadeh
February 23, 2023 (v1)
Keywords: bispacer, direct contact membrane distillation, GOR, multi-staged, permeate flux, thermal efficiency
A multi-staged direct contact membrane distillation (MDCMD) system is designed considering a novel bispacer configuration in the present study. The proposed bispacer DCMD, which has not been addressed in the literature to best of our knowledge, is considered with two purposes, including increasing mechanical stability and turbulence. As increasing turbulence leads to increasing Nusselt number, the bispacer MDCMD provides higher permeate flux. An analytical approach is considered using energy and mass balance correlation. The effect of bispacer and feed operating conditions, including feed temperature, feed flow rate, feed salinity, and the number of stages on permeate flux and salt rejection of the developed MDCMD, are examined both analytically and experimentally. The performance and sustainability of the developed system were investigated by analyzing the parameters, including thermal efficiency (η), gained output ratio (GOR), and temperature polarization coefficient (TPC).
Current Trends in Enrichment of Wheat Pasta: Quality, Nutritional Value and Antioxidant Properties
Dariusz Dziki
February 23, 2023 (v1)
Keywords: antioxidant properties, common wheat, durum wheat, fortification, nutritional value, quality, wheat pasta
Wheat pasta is one of the most important cereal products and is becoming increasingly popular worldwide because of its convenience, simple formulation, long shelf life, and high energetic value. Wheat pasta is usually obtained from refined flour rich in carbohydrates but with low content of phytochemicals, micronutrients, and fibre. The increased demand of consumers for healthy foods has generated interest among both researchers and food producers in developing functional food products. This review showcases the current trends in pasta fortification. Changes in the nutritional value, cooking quality, sensory attributes, and antioxidant properties of durum and common wheat pasta enriched with both plant and animal raw materials are discussed.
Fuzzy Multi-Criteria Decision-Making Approach for Online Food Delivery (OFD) Companies Evaluation and Selection: A Case Study in Vietnam
Ngoc Bao Tu Nguyen, Gu-Hong Lin, Thanh-Tuan Dang
February 23, 2023 (v1)
Keywords: evaluation, FAHP, fuzzy theory, multi-criteria decision making, online food delivery, Vietnam market, WASPAS
The COVID-19 pandemic has boosted the growth of the online food delivery (OFD) market in every corner of the world. In Vietnam, the food delivery service is rising rapidly and opening a large gateway of opportunities for numerous OFD platforms, also making it a competing business market in this country. Thus, to keep up with the ever-changing market dynamics, there are numerous measures and dimensions for the OFD entrepreneurs to take into consideration towards sustainable development. This paper’s objective is to evaluate major OFD companies in Vietnam based on a comprehensive set of criteria, which are social and environmental criteria (healthy and safety, information security, and environmental impact), economic criteria (delivery cost, operational capability, and risk management), service quality (order fulfillment, delivery speed, convenience of payment, online/offline service level, and customer feedback), and technology (web design, real-time tracking systems, and marketing tech... [more]
Effect of Parinari curatellifolia Peel Flour on the Nutritional, Physical and Antioxidant Properties of Biscuits
Shonisani Eugenia Ramashia, Felicia Matshepho Mamadisa, Mpho Edward Mashau
February 23, 2023 (v1)
Keywords: antioxidant activity, composite flour, polyphenolic compounds, proximate composition, textural properties
This study investigated the impact of Parinari curatellifolia peel flour on the nutritional, physical and antioxidant properties of formulated biscuits. Biscuits enriched with 5%, 10%, 15% and 20% of Parinari (P). curatellifolia peel flour were formulated and characterised. Thermal, physicochemical, polyphenolic compounds and antioxidant properties of flour and biscuits were determined. The incorporation of P. curatellifolia peel flour significantly increased (p < 0.05) thermal properties (onset, peak and conclusion temperatures) of flour. However, enthalpy of gelatinisation, viscosity and pH of flour samples decreased. Nutritional analysis revealed an increase in ash (0.74% to 2.23%) and crude fibre contents (0.39% to 2.95%) along with an increase of P. curatellifolia peel flour levels. Protein content and carbohydrates decreased while moisture content was insignificantly affected by the addition of P. curatellifolia peel flour. The L*, b* values and whiteness index of formulated b... [more]
Extraction Processes Affect the Composition and Bioavailability of Flavones from Lamiaceae Plants: A Comprehensive Review
Manuel Adrian Picos-Salas, José Basilio Heredia, Nayely Leyva-López, Dulce Libna Ambriz-Pérez, Erick Paul Gutiérrez-Grijalva
February 23, 2023 (v1)
Keywords: antioxidants, apigenin, bioaccessibility, bioavailability, flavones, Lamiaceae, luteolin, Ocimum, Origanum, Thymus
Lamiaceae plants are a widespread family of herbaceous plants with around 245 plant genera and nearly 22,576 species distributed in the world. Some of the most representative and widely studied Lamiaceae plants belong to the Ocimum, Origanum, Salvia, and Thymus genera. These plants are a rich source of bioactive molecules such as terpenes, flavonoids, and phenolic acids. In this sense, there is a subgroup of flavonoids classified as flavones. Flavones have antioxidant, anti-inflammatory, anti-cancer, and anti-diabetic potential; thus, efficient extraction techniques from their original plant matrixes have been developed. Currently, conventional extraction methods involving organic solvents are no longer recommended due to their environmental consequences, and new environmentally friendly techniques have been developed. Moreover, once extracted, the bioactivity of flavones is highly linked to their bioavailability, which is often neglected. This review aims to comprehensively gather rec... [more]
Grape (Vitis vinifera L. cv. País) Juices Obtained by Steam Extraction
Walther Ide, Constanza Sabando, Johanna Castaño, Natalia Pettinelli, Richard Bustos, Ana Linares, Leandro Mora, Niels Müller, Guillermo Pascual, Saddys Rodríguez-Llamazares
February 23, 2023 (v1)
Keywords: antioxidant capacity, juice, país grape, phenolic compounds, steam extraction
L. cv. País is an ancestral Chilean grape undervalued due to its undesirable oenological characteristics. In this study, steam extraction for the production of grape juice, a new product, according to our knowledge, is proposed as an alternative for the valorization of this fruit. The effect of the extraction time on the composition and antioxidant capacity of País grape juice obtained was evaluated, as well as the change in the phenolic profile during storage. The soluble solid values and total polyphenol and total anthocyanin content increased with the extraction time. However, a residence time of the juice in the extraction device higher than 10 min led to thermal degradation of anthocyanins and flavonols. The most abundant phenolic compound identified and quantified by HPLC-DAD in the País grape juice was cinnamic acid. The storage of juices had a greater effect on anthocyanin and flavonol losses than the residence time of the juice in the extraction device. The antioxidant capacit... [more]
Metagenomic Analysis of Suansun, a Traditional Chinese Unsalted Fermented Food
Yaping Hu, Xiaodong Chen, Jie Zhou, Wenxuan Jing, Qirong Guo
February 23, 2023 (v1)
Keywords: functional gene, KEGG pathway, metagenomic, microbial diversity, suansun
Suansun, made from fresh bamboo shoots fermented without salt, is a traditional food in China’s southern region and is popular for its nutritious and unique flavor. To comprehensively understand the microbial species and characteristics of suansun, Illumina HiSeq metagenomic sequencing technology was used to sequence suansun’s fermentation broth obtained from six traditional producing areas in southern China, and the microbial community structure, diversity, and functional genes were analyzed. A total of 8 phyla, 16 classes, 30 orders, 63 families, 92 genera, and 156 species of microorganisms were identified in the suansun samples, with Lactiplantibacillus predominating, accounting for up to 81% of the species, among which 12 species, including Lactiplantibacillus plantarum, were the main species. A total of 12,751 unigenes were annotated to 385 metabolic pathway classes, of which 2927 unigenes were involved in carbohydrate metabolism. Lactiplantibacillus fermentum, Lactiplantibacillus... [more]
Production of Extrudate Food with Mango By-Products (Mangifera indica): Analysis of Physical, Chemical, and Sensorial Properties
Esther Alicia Medina-Rendon, Guadalupe María Guatemala-Morales, Eduardo Padilla-Camberos, Rosa Isela Corona-González, Enrique Arriola-Guevara, Jorge Alberto García-Fajardo
February 23, 2023 (v1)
Keywords: by-products mango, chemical properties, food extrudate, hedonic test, mango kernel flour, mango peel flour, mixture design, physical properties
The novelty of this work is the use of two mango by-products, mango peel and kernel, to obtain an extruded food. As well as the development of this food through a design of mixtures, we conducted sensorial analysis of the food through a hedonic test, in order not only to develop an extruded food with mango by-products, but also to develop a food that will be accepted by the consumer. A simple lattice mixture design was carried out with 14 mixtures, where the components were white corn flour (WCF), mango peel flour (MPF) and mango kernel flour (MKF), both from the Tommy Atkins mango variety. Physical and chemical properties such as the expansion index (EI), hardness, water absorption index (WAI), water solubility index (WSI), total phenols, DPPH and ABTS were evaluated. An optimization region was found that included 3 design points. Mixtures 1, 6 and 12 were evaluated using a nine-point hedonic scale to determine the acceptability of the product. Appearance, taste, and texture of the ex... [more]
Improvement of Carrot Accelerated Solvent Extraction Efficacy Using Experimental Design and Chemometric Techniques
Vesna Tumbas Šaponjac, Strahinja Kovačević, Vanja Šeregelj, Olja Šovljanski, Anamarija Mandić, Gordana Ćetković, Jelena Vulić, Sanja Podunavac-Kuzmanović, Jasna Čanadanović-Brunet
February 23, 2023 (v1)
Keywords: antioxidant activity, carotenoids, Extraction, hierarchical cluster analysis, polyphenols, response surface methodology, sum of ranking differences
Human studies have demonstrated the multiple health benefits of fruits and vegetables. Due to its high fiber, mineral and antioxidant content, carrot is an ideal source for the development of nutraceuticals or functional ingredients. Current research assesses accelerated solvent extraction (ASE) traits which affect the antioxidant qualities of carrot extract using response surface methodology (RSM), hierarchical cluster analysis (HCA), and the sum of ranking differences (SRD). A mixture of organic solvents, acetone, and ethanol with or without the addition of 20% water was applied. The total carotenoid and polyphenol contents in extracts, as well as their scavenging activity and reducing power, were used as responses for the optimization of ASE extraction. RSM optimization, in the case of 20% water involvement, included 49% of acetone and 31% of ethanol (Opt1), while in the case of pure organic solvents, pure ethanol was the best choice (Opt2). The results of HCA clearly pointed out si... [more]
Alginate Nanohydrogels as a Biocompatible Platform for the Controlled Release of a Hydrophilic Herbicide
Fiora Artusio, Dario Casà, Monica Granetto, Tiziana Tosco, Roberto Pisano
February 23, 2023 (v1)
Keywords: alginate, cross-linking, hydrogel, miniemulsion, nanoparticle, nanopesticide, release
The large-scale application of volatile and highly water-soluble pesticides to guarantee crop production can often have negative impacts on the environment. The main loss pathways are vapor drift, direct volatilization, or leaching of the active substances. Consequently, the pesticide can either accumulate and/or undergo physicochemical transformations in the soil. In this scenario, we synthesized alginate nanoparticles using an inverse miniemulsion template in sunflower oil and successfully used them to encapsulate a hydrophilic herbicide, i.e., dicamba. The formulation and process conditions were adjusted to obtain a unimodal size distribution of nanohydrogels of about 20 nm. The loading of the nanoparticles with dicamba did not affect the nanohydrogel size nor the particle stability. The release of dicamba from the nanohydrogels was also tested: the alginate nanoparticles promoted the sustained and prolonged release of dicamba over ten days, demonstrating the potential of our prepar... [more]
Nanocellulose from Agricultural Wastes: Products and Applications—A Review
Soledad Mateo, Silvia Peinado, Francisca Morillas-Gutiérrez, M. Dolores La Rubia, Alberto J. Moya
February 23, 2023 (v1)
Keywords: lignocellulose biomass, nanocellulose, nanocrystal, nanofibers
The isolation of nanocellulose from different agricultural residues is becoming an important research field due to its versatile applications. This work collects different production processes, including conditioning steps, pretreatments, bleaching processes and finally purification for the production of nanocellulose in its main types of morphologies: cellulose nanofiber (CNF) and cellulose nanocrystal (CNC). This review highlights the importance of agricultural wastes in the production of nanocellulose in order to reduce environmental impact, use of fossil resources, guarantee sustainable economic growth and close the circle of resource use. Finally, the possible applications of the nanocellulose obtained as a new source of raw material in various industrial fields are discussed.
Protective Effect of Salvianolic Acid B in Acetic Acid-Induced Experimental Colitis in a Mouse Model
Mydhili Govindarasu, Mohammad Azam Ansari, Mohammad N. Alomary, Sami AlYahya, Saad Alghamdi, Azzah M. Bannunah, Mazen Almehmadi, Pari Abirami, Ekambaram Gayathiri, Mariyappan Palani, Govindasamy Rajakumar, Muthu Thiruvengadam, Manju Vaiyapuri
February 23, 2023 (v1)
Keywords: acetic acid, ACF, mast cells, myeloperoxidase, salvianolic acid B, ulcerative colitis
In its prominent experimental studies salvianolic acid B (Sal B) is novel because of its well-defined, common physiological effects, which include anti-inflammatory, anti-depressant, cardioprotective, DNA protective, neuroprotective and hepatoprotective activity in experimental animals. Initially, Sal B was studied for its anti-inflammatory properties, used as a remedy for a wide range of disease conditions, but its specific efficacy on inflammatory bowel disease is still unclear. The aim of this current study was to understand the therapeutic potential of Sal B in an acetic acid (AA)—triggered experimental mouse colitis model. Colitis was triggered by intrarectal injection of 5% AA, and then laboratory animals were given Sal B (10, 20 and 40 μg/kg) for seven days. The ulcerated colonic mucosa was assessed by clinical experiment, macroscopical, biological and histopathological analysis. The results showed depleted SOD, CAT, GSH levels and consequential elevated MPO and MDA levels and a... [more]
Olive Sound: A Sustainable Radical Innovation
Maria Lisa Clodoveo, Pasquale Crupi, Filomena Corbo
February 23, 2023 (v1)
Keywords: competitiveness, malaxation, sonication
Olive Sound is the acronym of a Horizon 2020 European Project aimed at the development of a high-flow oil extraction plant, the Sono-Heat-Exchanger, which combines ultrasound and heat exchange in order to break, through a radical innovation model in the oil mill, the historical paradigm that sees as inversely correlated the oil yield and the content of bio-phenols. These compounds are biologically active molecules that transform the product, extra virgin olive oil, from a mere condiment into a functional food. The primary objective of the project, financially supported by the European Union through the “Fast Track to Innovation” program, is the development of a product “ready for the market” (TRL 9) capable of making the involved companies more competitive while increasing the competitiveness of European extra virgin olive oil in the international context.
Antioxidant Activity of Spiranthes sinensis and Its Protective Effect against UVB-Induced Skin Fibroblast Damage
Shang-Ming Huang, Chwen-Jen Shieh, Yu-Lin Wu, Yang-Zing Pan, Chi-Yang Yu
February 23, 2023 (v1)
Keywords: antioxidant, human skin fibroblast, Spiranthes sinensis, ultraviolet radiation
(S. sinensis), a species of orchid, is a well-known herb medicine used to treat disorders such as stomachache, diabetes, shingles, and certain inflammatory diseases. Presently, the antioxidant activity of S. sinensis as well as its protective effect on UVB-induced skin injury are unclear. In this study, S. sinensis was extracted with boiling water or 75% (v/v) ethanol, and then its antioxidant composition and antioxidant activity were determined. The protective effects of S. sinensis against UVB-induced damage in human skin fibroblasts (CCD-966SK) were also investigated. Our data showed that the extraction yield of boiling water was higher than that of 75% ethanol. However, compared to the aqueous extracts, the ethanol extracts not only had higher phenolic, flavonoid, and condensed tannin contents, but also exhibited higher free radical scavenging activity, higher reducing power, and higher ferrous ion-chelating capacity. When fibroblasts were pre-cultured with the water or ethanol ext... [more]
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