نتایج جستجو برای: β carotene bleaching

تعداد نتایج: 187657  

2016
Fatma Bouaziz Mohamed Koubaa Francisco J. Barba Shahin Roohinejad Semia Ellouz Chaabouni

Soluble flaxseed gum (SFG) was extracted from flax (Linum usitatissimum) hulls using hot water, and its functional groups and antioxidant properties were investigated using infrared spectroscopy and different antioxidant assays (2,2-diphenyl-1-picrylhydrazyl (DPPH), 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulphonic acid (ABTS), reducing power capacity, and β-carotene bleaching inhibition assay)...

Alavi , L, Barzegar , M, Jabbari , A, Naghdi Badi , H,

Background: Thymus daenensis Celak. is one of the medicinal plants which cultivated in Iran. This plant involve high amount of polyphenols including thymol and carvacrol, which were reported to possess the high antioxidant activity. Objective: Antioxidative activity (AOA) and chemical constituents of Thymus daenensis essential oil (TDEO) were examined. Also, the effect of thermal treatments (8...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
l alavi department of chemistry, k. n. toosi university of technology m barzegar department of food science and technology, tarbiat modares university, p. o. box 14115-336, tehran, iran tel: + 98 - 21 - 48292323, fax: + 98 – 21 - 48292200 a jabbari department of chemistry, k. n. toosi university of technology h naghdi badi department of cultivation and development, institute of medicinal plants, acecr

background: thymus daenensis celak. is one of the medicinal plants which cultivated in iran. this plant involve high amount of polyphenols including thymol and carvacrol, which were reported to possess the high antioxidant activity. objective: antioxidative activity (aoa) and chemical constituents of thymus daenensis essential oil (tdeo) were examined. also, the effect of thermal treatments (80...

Journal: :jundishapur journal of microbiology 0
reza sharafati chaleshtori department of food hygiene, faculty of specialized veterinary sciences, science and research branch, islamic azad university, tehran, ir iran; department of food hygiene, faculty of specialized veterinary sciences, science and research branch, islamic azad university, tehran, ir iran. tel: +98-3812243085, fax: +98-3813334911 noordahr rokni faculty of veterinary medicine, tehran university of medical sciences, tehran, ir iran vadood razavilar department of food hygiene, science and research branch, islamic azad university, tehran, ir iran mahmoud rafieian kopaei medical plants research center, shahre-kord university of medical sciences, shahre-kord, ir iran

background food born pathogenic bacteria are the most important agents of infections in humans, and food spoilage also results in economic losses in food industry. objectives the aim of this study was the evaluation of chemical components, total phenolic content, antioxidant and antibacterial activities of artemisia dracunculus essential oil. materials and methods the essential oil of tarragon ...

Journal: :Malaysian journal of nutrition 2010
H S Yim F Y Chye C T Tan Y C Ng C W Ho

Pleurotus ostreatus better known as oyster mushroom is widely cultivated and consumed as food in Malaysia. The present study aims to assess the antioxidative potential and total phenolic content of P. ostreatus aqueous extract. The antioxidant activities were evaluated against DPPH and ABTS radical-scavenging activity, ferric-reducing antioxidant power (FRAP) and β-carotene-linoleate bleaching ...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
l alavi department of chemistry, k. n. toosi university of technology m barzegar department of food science and technology, tarbiat modares university, p.o.box: 14115 - 336, tehran, iran tel: + 98 – 21 – 48292323; fax: + 98 – 21 – 48292200 a jabbari department of chemistry, k. n. toosi university of technology h naghdi badi department of cultivation and development, institute of medicinal plants, acecr

background: in recent years, natural products, especially natural antioxidants, play an important role in various fields. in fact, lippia citriodora is one of the medicinal plants which is cultivated in iran and it may be has potential antioxidant activity. objective: the chemical composition of lippia citriodora essential oil (lceo) has been determined. the total phenolic content and antioxida...

This study represents the first report on the chemical composition and biological activity of Trifolium angustifolium var. angustifolium. The major components of the essential oil were identified as hexatriacontene (23.0%), arachidic acid (15.5%) and α-selinene (10.0%). The main constituents of the fatty acid obtained from the petroleum ether extract were identified as palmitic acid (29.8%), li...

2013
Natália Mezzomo Daniela A. Oliveira Sandra R. S. Ferreira

The objective of this work was to estimate the antioxidant potential of the extracts from pink shrimp residue and red grape pomaces (Merlot and Syrah varietals), evaluated according to its antioxidant activity with different analytical methods, associating these properties with the chemical composition of the extract and, as a consequence, with the extraction procedure. The shrimp residue was p...

2013
Jackeline Tiemy Guinoza Siraichi Daniele Fernanda Felipe Lara Zampar Serra Brambilla Melissa Junqueira Gatto Vânia Aparecida Terra Alessandra Lourenco Cecchini Lucia Elaine Ranieri Cortez Edson Rodrigues-Filho Diógenes Aparício Garcia Cortez

Arrabidaea chica leaf extract has been used by people as an anti-inflammatory and astringent agent as well as a remedy for intestinal colic, diarrhea, leucorrhea, anemia, and leukemia. A. chica is known to be a good producer of phenolics. Therefore, in the present study, we investigated its antioxidant activity. The phenolic composition of A. chica leaves was studied by liquid chromatography co...

Alavi, L , Barzegar , M , Jabbari , A, Naghdi badi , H ,

Background: In recent years, natural products, especially natural antioxidants, play an important role in various fields. In fact, Lippia citriodora is one of the medicinal plants which is cultivated in Iran and it may be has potential antioxidant activity. Objective: The chemical composition of Lippia citriodora essential oil (LCEO) has been determined. The total phenolic content and antioxid...

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