Physical And Chemical Properties
Mostrando 13-24 de 948 artigos, teses e dissertações.
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13. A Theoretical Antioxidant Mechanism for Cytoprotective Effect of p-Acetamide-Salicylate Derivatives against Free Radical Initiator AAPH in Human Erythrocytes
The molecular mechanism of cytoprotective effect on human erythrocytes of aminophenol and salicylates associated derivatives was related to their antioxidant capacity. The oxidative hemolysis induced by water-soluble free-radical initiator 2,2’-azobis-(2-amidine-propane)-dihydrochloride (AAPH) was inhibited by drug candidates named benzaminophen (BZL), sal
J. Braz. Chem. Soc.. Publicado em: 2021-07
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14. ERRATA
Abstract After natural fermentation and solar drying, sour cassava starch acquires expansion property. Traditionally, solar drying occurs without protection, and consequently physical contamination can arise. Thus, the aim of this study was to produce sour cassava starch using a low-cost solar dryer to prevent contamination, whilst retaining the expansion pr
Rev Bras Med Esporte. Publicado em: 2021-06
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15. Traditional sour cassava starch obtained with alterations in the solar drying stage
Abstract After natural fermentation and solar drying, sour cassava starch acquires expansion property. Traditionally, solar drying occurs without protection, and consequently physical contamination can arise. Thus, the aim of this study was to produce sour cassava starch using a low-cost solar dryer to prevent contamination, whilst retaining the expansion pr
Food Sci. Technol. Publicado em: 2021-06
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16. Liquid Phase Nitration of Benzene Catalyzed by a Novel Salt of Molybdovanadophosphoric Heteropolyacid
A highly efficient and reusable catalyst QA-HPMV was successfully prepared by the reaction of quinoline-2-formic acid (QA) with molybdovanadophosphoric heteropolyacid (H4PMo11VO40, HPMV) for the nitration of benzene. The physical and chemical properties of the sample was characterized by X-ray diffraction analysis (XRD), Fourier transform infrared spectrosco
J. Braz. Chem. Soc.. Publicado em: 2021-06
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17. Determination of physical and chemical properties of kombucha teas prepared with different herbal teas
Abstract In this research, kombucha tea was prepared using 5 different tea extracts and physicochemical and sensory analyses were made. The tea extracts used are black tea, green tea, sage, linden and mint, respectively. The prepared tea samples were subjected to fermentation for 14 days. In tea samples, pH, electrical conductivity, water-soluble solid and p
Food Sci. Technol. Publicado em: 2021-06
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18. MACROALGAE Fucus vesiculosus OIL: BIODIESEL PRODUCTION USING ALKALINE TRANSESTERIFICATION
This work studied the obtaining of methyl biodiesel and ethyl biodiesel using alkaline transesterification from macroalgae Fucus vesiculosos oil (FVO). FVO has 86.59% of its composition in unsaturated fatty acids, with a greater quantity of linoleic acid and oleic acid, a chemical composition near the soybean oil, the most used raw material for the productio
Quím. Nova. Publicado em: 2021-04
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19. Influence of roasted and unroasted terebinth (Pistacia terebinthus) on the functional, chemical and textural properties of wire-cut cookies
Abstract The study aimed to access the effects of roasted and unroasted terebinth (0, 10, 20, 30, 40, and 50%) added to cookies to improve their physical, chemical, functional, and textural characteristics. The addition of terebinth to the cookie formulation significantly increased the ash, protein, fat, total dietary fiber, total phenolic matter, and antiox
Food Sci. Technol. Publicado em: 2021-03
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20. CARACTERIZAÇÃO FÍSICA E QUÍMICA DA BIOMASSA USADA COMO COMBUSTÍVEL SÓLIDO EM UMA CALDEIRA
Biomass is a renewable energy source most used in the world, however, depending on the chemical properties and origin of the material used as biofuel, the amount of ash generated during combustion can be high, harming the energetic harnessing. The objective of this study was to characterize chemically and physically biomass: bark, sawdust, and urban pruning;
Quím. Nova. Publicado em: 2021-01
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21. PROPRIEDADES DE PROTEÇÃO TÉRMICA DO CARBETO DE SILÍCIO EM REVESTIMENTOS CERÂMICOS
In recent years, research on the development of protective materials has expanded significantly in order to find efficient and economically viable solutions for application in various industrial segments. Among these materials, those aimed at protecting metallic substrates against high temperatures that end up causing corrosive processes, stand out due to th
Quím. Nova. Publicado em: 2021-01
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22. Comprehensive assessment and evaluation of selected wheat varieties for their relationship to chapatti quality attributes
Abstract Wheat is consumed as staple food by majority of population in Pakistan. This study was aimed to assess the effects of recently introduced five cultivars of wheat (Ojala 2016, Borlaug 2016, Johar 2016, Gold 2016 and Fatehjang 2016) for chapatti quality. Results for different physical, chemical, rheological and sensory parameters revealed significant
Food Sci. Technol. Publicado em: 2020-12
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23. Antibacterial activity of polyvinyl alcohol (PVA)/ε-polylysine packaging films and the effect on longan fruit
Abstract Biodegradable and antimicrobial films via combing ε-polylysine (ε-PL) and polyvinyl alcohol (PVA) is a promising material for food packaging. We prepared the ε-PL/ PVA films with the ε-PL content of 0%, 1%, 3%, 5% and 7% (wt., relative to PVA) by casting method and their physical and chemical properties were characterized. SEM indicated the surf
Food Sci. Technol. Publicado em: 2020-12
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24. Investigation of some properties of gluten-free tarhanas produced by red, green and yellow lentil whole flour
Abstract Gluten-free lentil tarhanas were obtained by replacing red, green and yellow lentil whole flour instead of wheat flour used in traditional tarhana formulation. Some physical, chemical, bioactive, microbiological, reological, morphological and sensory properties of these tarhanas were investigated comparatively. Amount of crude protein (%), crude ash
Food Sci. Technol. Publicado em: 2020-12