منابع مشابه
Determination of Carotene in Sweet Potatoes.
The determination of carotene in fresh plant tissue is complicated by the presence of large amounts of water. The tissue must be dehydrated before the carotenoids can be extracted with fat solvents. This has been accomplished in the past by the addition of acetone or ethanol with a fat solvent such as Skellysolve B (8, 5). These methods employ a Waring blendor for disintegrating the tissue in t...
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The aim of this study was to investigate the factors affecting the survival and growth of four food-borne pathogens (Escherichia coli O157:H7, Salmonella Typhimurium, Listeria monocytogenes, and Staphylococcus aureus) in sweet and fermenting brewery wort. The Gram-negative pathogens (E. coli and Salm. Typhimurium) were capable of growth during the initial stages of fermentation in hopped wort, ...
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چکیده ندارد.
15 صفحه اولDetermination of total hypericins in St. John's wort and herbal medicinal products.
The work aimed to determine the levels of hypericins expressed as hypericin in the herbal substance of St. John's wort, in capsules and tablets containing the extract of St. John's wort, tablets containing powdered herb and in tincture and juice from fresh St. John's wort, by HPLC method with spectrophotometric detection. In addition, the amount of hypericins in the infusion prepared from St. J...
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در این پژوهش به بررسی اثر افزایش ترافیک بر روی تعداد تصادفات پرداخته شده است. به این منظور 30 تقاطع در شهر تهران بطور تصادفی انتخاب گردید و تعداد تصادفات ماهیانه در این تقاطعات در طول سالهای 89-90 از سازمان کنترل ترافیک شهر تهران استخراج گردید و با استفاده از مدل داده های تابلویی و نرم افزار eviews مدل خطی و درجه دوم تخمین زده شد و در نهایت این نتیجه حاصل شد که تقاطعات پر ترافیک تر تعداد تصادفا...
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ژورنال
عنوان ژورنال: Kvasny Prumysl
سال: 1980
ISSN: 0023-5830
DOI: 10.18832/kp1980015