scholarly journals Usage of Phenolic Extract of Grape Waste as Natural Antioxidant for Milk Proteins

2018 ◽  
Vol 11 (02) ◽  
pp. 196-200
Author(s):  
Dima Aldiab
Keyword(s):  
Milk Proteins ◽  
Natural Antioxidant ◽  
Grape Waste ◽  
Phenolic Extract

A quanti-qualitative study of a phenolic extract as a natural antioxidant in the frying processes

2019 ◽  
Vol 279 ◽  
pp. 426-434 ◽  
Author(s):  
Beatrice Sordini ◽  
Gianluca Veneziani ◽  
Maurizio Servili ◽  
Sonia Esposto ◽  
Roberto Selvaggini ◽  
...  
Keyword(s):  
Qualitative Study ◽  
Natural Antioxidant ◽  
Phenolic Extract

Formation and Structure of Casein Micelles in Lactating Mammary Tissue

1970 ◽  
Vol 28 ◽  
pp. 150-151
Author(s):  
Robert J. Carroll ◽  
Marvin P. Thompson ◽  
Harold M. Farrell
Keyword(s):  
Size Distribution ◽  
G Protein ◽  
Milk Proteins ◽  
Mammary Tissue ◽  
Colloidal System ◽  
Casein Micelles ◽  
The Stability

Milk is an unusually stable colloidal system; the stability of this system is due primarily to the formation of micelles by the major milk proteins, the caseins. Numerous models for the structure of casein micelles have been proposed; these models have been formulated on the basis of in vitro studies. Synthetic casein micelles (i.e., those formed by mixing the purified αsl- and k-caseins with Ca2+ in appropriate ratios) are dissimilar to those from freshly-drawn milks in (i) size distribution, (ii) ratio of Ca/P, and (iii) solvation (g. water/g. protein). Evidently, in vivo organization of the caseins into the micellar form occurs in-a manner which is not identical to the in vitro mode of formation.

Plantago holosteum Scop. as a potential natural antioxidant and antiinflammatory agent

Planta Medica ◽  
2009 ◽  
Vol 75 (09) ◽  
Author(s):  
I Beara ◽  
M Lesjak ◽  
E Jovin ◽  
K Balog ◽  
D Orčić ◽  
...  
Keyword(s):  
Natural Antioxidant ◽  
Antiinflammatory Agent

Innovative Extraction Techniques for the Optimum Extraction of Phenolic Compounds from Peanut Meal and Evaluation of Their Biological Activities

2019 ◽  
Vol 4 (2) ◽  
Keyword(s):  
Phenolic Compounds ◽  
Carcinoma Cell ◽  
Biological Activities ◽  
Peanut Meal ◽  
Ultrasound Assisted Extraction ◽  
Carcinoma Cell Lines ◽  
Assisted Extraction ◽  
Phenolic Extract ◽  
Ultrasound Assisted ◽  
Water Ratio

There is a worldwide demand for phenolic compounds (PC) because they exhibit several biological activities. This work aimed at extracting phenolic compounds from peanut meal. The methods of extraction were mainly: conventional solvent extraction (traditional methods) and ultrasound assisted extraction (recent methods) and comparing their results. Peanut meal (PM) was prepared by defatting with n-hexane, and then extracted by the two previous methods. First, the conventional solvents used were 80% methanol, ethanol, acetone, isopropanol, and distilled water. Then studied Different parameters such as meal: water ratio, also the effect of temperature and the pH on the extraction process. Second, ultrasonic assisted extractions (USAE), the parameters investigated were temperature, time and speed of sonication. Finally, all the extracts were analyzed by HPLC for their phenolic contents. Results indicated that the highest extracted PC achieved by solvents was in distilled water where 1:100, Meal: Water ratio which extracted 40 mg PC / g PM at 30& 35°C. Highest extracted PC was achieved by alkaline medium at pH 12 more than acidic and neutral medium. While (USAE) at speed 8 ultrasonication and temperature 30ᵒC, extracted 49.2mg PC /g PM. Sothe ultrasound assisted extraction exhibited great influence on the extraction of phenolic compounds from peanut meal. The ultrasonic peanut extract was examined for its antioxidant, antimicrobial and anticarcinogenic activities. The antioxidant activity of PM phenolic extract prepared by ultrasonic technique, was measured by, β-carotene, and DPPH methods, and reducing antioxidant power. Results revealed values: 84.57, 57.72 and 5960 respectively. The PM extract showed different levels of antimicrobial activity against the pathogenic bacteria used. As for the anticarcinogenic effect PM phenolic extract most effective on inhibiting colon carcinoma and lung carcinoma cell lines with IC50 = 20.7 and 20.8 µ/ml., respectively. This was followed by intestinal carcinoma and liver carcinoma cell lines with IC50= 39.6 and 40.2µ/ml.

GENE ACTIVATION IN MAMMARY CELLS

1972 ◽  
Vol 71 (2_Suppla) ◽  
pp. S346-S368 ◽  
Author(s):  
Roger W. Turkington ◽  
Nobuyuki Kadohama
Keyword(s):  
Cell Differentiation ◽  
Gene Transcription ◽  
Hormonal Regulation ◽  
Gene Activation ◽  
Milk Proteins ◽  
Mouse Mammary Gland ◽  
Nuclear Proteins ◽  
Mammary Cells ◽  
Alveolar Cells ◽  
Mammary Cell

ABSTRACT Hormonal activation of gene transcription has been studied in a model system, the mouse mammary gland in organ culture. Transcriptive activity is stimulated in mammary stem cells by insulin, and in mammary alveolar cells by prolactin and insulin. Studies on the template requirement for expression of the genes for milk proteins demonstrate that DNA methylation has an obligatory dependence upon DNA synthesis, but is otherwise independent from hormonal regulation of mammary cell differentiation. Incorporation of 5-bromo-2′deoxyuridine into DNA selectively inhibits expression of the genes for specific milk proteins. Undifferentiated mammary cells activate the synthesis of specific acidic nuclear proteins when stimulated by insulin. Several of these induced acidic nuclear proteins are undetectable in unstimulated undifferentiated cells, but appear to be characteristic components of the nuclei of differentiated cells. These results indicate that mammary cell differentiation is associated with a change in acidic nuclear proteins, and they provide evidence to support the concept that acidic nuclear proteins may be involved in the regulation of gene transcription and of mammary cell differentiation.

The importance of stock herding and dairying in the Neolithic Balkans and the subsistence diversity

2020 ◽  
Author(s):  
Darko Stojanovski ◽  
Ivana Živaljević ◽  
Vesna Dimitrijević ◽  
Julie Dunne ◽  
Richard Evershed ◽  
...  
Keyword(s):  
Milk Proteins ◽  
Domestic Animal ◽  
Dental Calculus ◽  
Isotopic Study ◽  
Radiocarbon Dates ◽  
The Balkans ◽  
Animal Remains ◽  
New Information ◽  
Archaeological Materials ◽  
Ceramic Vessels

The application of biomolecular techniques to archaeological materials from the Balkans is providing valuable new information on the prehistory of the region. This is especially relevant for the study of the neolithisation process in SE Europe, which gradually affected the rest of the continent. Here, to answer questions regarding diet and subsistence practices in early farming societies, we combine organic residue analyses of archaeological pottery, taxonomic and isotopic study of domestic animal remains and biomolecular analyses of human dental calculus. The results from the analyses of the lipid residues from pottery suggest that milk was processed in ceramic vessels. Dairy products were shown to be part of the subsistence strategies of the earliest Neolithic communities in the region but were of varying importance in different areas of the Balkan. On the other hand, we did not confidently detect any milk proteins within the dental calculus. The molecular and isotopic identification of meat, dairy, plants and beeswax in the pottery lipids also provided insights into the diversity of diet in these early Neolithic communities. We also present the first compound-specific radiocarbon dates for the region, obtained directly on absorbed organic residues extracted from pottery, identified as dairy lipids.

Disorder in Milk Proteins: Caseins, Intrinsically Disordered Colloids

2015 ◽  
Vol 16 (3) ◽  
pp. 228-242 ◽  
Author(s):  
Elrashdy Redwan ◽  
Bin Xue ◽  
Hussein Almehdar ◽  
Vladimir Uversky
Keyword(s):  
Milk Proteins ◽  
Intrinsically Disordered
Sign in / Sign up

Export Citation Format

Share Document