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UN Sustainable Development : Partnership for the ... ✕Department : Gıda Mühendisliği ✕
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Partnership for the goalsStrengthen the means of implementation and revitalize the global partnership for sustainable development
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Chemical Composition and Antioxidant Activity of Sea-Buckthorn (Hippophae rhamnoides L.) Grown in Issyk-Kul Region, Kyrgyz Republic

Aygül USUBALİYEVA | Nurzat TOTUBAYEVA

The fruit of sea-buckthorn (Hippophae rhamnoides L.) is a rich source of nutrients and phytochemicals. This study determined the chemical composition and antioxidant activity of sea-buckthorn grown in Issyk-Kul region, Kyrgyz Republic, during maturation from August to November. Three different assays [ferric reducing antioxidant power (FRAP), DPPH radical scavenging activity (DPPH), and cupric ion reducing antioxidant capacity (CUPRAC)] were used to determine the antioxidant activity of sea-buckthorn fruits. Sea-buckthorn fruits had a sugar content of 6.57-8.08 g/100g, a dietary fiber content ...More

Article 2022 Mühendislik Fakültesi Akademik Gıda20 ( 4 ) 53 Views
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Study of relations between chemical, colour and fluorescence properties of raw and dried meat powders of cow and yak (Bos grunniens)

Cıldızay ÖZBEKOVA | Asılbek KULMIRZAYEV

Gluteus medius, Longissimus thoracis, and Semitendinosus muscles from the cow and yak (Bos grunniens) reared in the Kyrgyz Republic were dried by convective (hot air) drying and freeze drying. The dried muscles were grinded into fine powders and along with raw muscles were evaluated for water activity (aW), chemical composition (moisture, fat, protein), colour characteristics (L, a, and b values), fluorescence of intrinsic fluorophores (tryptophan, vitamin A, and riboflavin). Processing of measured data tables using common components and specific weights analysis (CCSWA) showed close relations ...More

Article 2023 Mühendislik Fakültesi Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy306 19 Views
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Determination of amino acid profile of mare milk produced in highlands of the Kyrgyz Republic during the milking season

Ayçürök MACİTOVA | Asılbek KULMIRZAYEV

This study was carried out to determine the influence of milking season on amino acid (AA) profile and chemical composition of milk samples from Kyrgyz native breed mares under traditional pasture conditions. Milk samples were collected monthly from May to August 2014 from mares grazing at 2,200 m above sea level. The AA composition was determined by precolumn derivatization with diethyl ethoxymethylenemalonate in HPLC and 18 AA were determined in mare milk. The analytical parameters of linearity (0.01–4 μg/mL), precision of the method (0.26–4.88% relative standard deviation), derivatization p ...More

Article 2016 Mühendislik Fakültesi Journal of Dairy Science99 ( 4 ) 109 Views
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A survey of concentration of aflatoxin M1 in dairy products marketed in Turkey

Zafer GÖNÜLALAN

The aim of this study was to examine the presence of aflatoxin M1 (AFM1) in dairy product samples by enzyme-linked immunosorbent assay (ELISA). Aflatoxin M1 were found in 135 (64%) out of 210 analyzed samples. Only 7% of dairy product samples were contaminated at levels above the legal limits. AFM1 was detected in 43 (86%) of milk samples (ranging from 1 to 30 ng/l), in 38 (63%) of cheese (ranging from 12 to 378 ng/kg), in 28 (56%) of yoghurt (ranging from 2.5 to 78 ng/kg) and in 26 (52%) of dairy dessert samples (ranging from 1.5 to 80 ng/kg). None of the raw milk samples contained levels abo ...More

Article 2011 Mühendislik Fakültesi Food Control22 ( 12 ) 20 Views
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Применение флуоресцентной спектроскопии для оценки качества термически обработанного молока = Application of fluorescent spectroscopy to estimation of quality of heat-treated milk

Asılbek KULMIRZAYEV

Продемонстрирована возможность применения флуоресцентной спектроскопии для получения информации о физико-химических свойствах и качестве термически обработанного молока посредством одновременного определения содержания фурозина и лактулозы. Сравнение полученных результатов с результатами стандартных методов показало высокую корелляцию между ними. Таким образом, доказано, что флуоресцентная спектроскопия - относительно дешевый, быстрый и неразрушающий метод, может заменить аналитические методы, применяемые в настоящее время для оценки качества молочных продуктов. It was shown that fluorescence ...More

Article 2007 Mühendislik Fakültesi Хранение и переработка сельхозсырья ( 12 ) 67 Views
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