کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7594040 | 1492118 | 2015 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Physicochemical characterisation of β-carotene emulsion stabilised by covalent complexes of α-lactalbumin with (â)-epigallocatechin gallate or chlorogenic acid
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کلمات کلیدی
(−)-Epigallocatechin gallate (PubChem CID: 65064)Beta carotene (PubChem CID: 5280489)(−)-epigallocatechin gallate - (-) - epigallocatechin گالاتα-Lactalbumin - α-لاکتبالومینβ-Carotene emulsion - β-کاروتن امولسیونChlorogenic acid - اسید کلروژنیکChlorogenic acid (PubChem CID: 1794427) - اسید کلرژنیک (PubChem CID: 1794427)Physicochemical stability - پایداری فیزیکوشیمیایی
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this study the impact of covalent complexes of α-lactalbumin (α-La) with (â)-epigallocatechin gallate (EGCG) or chlorogenic acid (CA) was investigated on the physicochemical properties of β-carotene oil-in-water emulsions. EGCG, or CA, was covalently linked to α-La at pH 8.0, as evidenced by increased total phenolic content and declined fluorescence intensity. Compared with those stabilised by α-La alone and α-La-CA or EGCG mixture, the emulsion stabilised by the α-La-EGCG covalent complex exhibited the least changes in particle size and transmission profiles, using a novel centrifugal sedimentation technique, indicating an improvement in the physical stability. The least degradation of β-carotene occurred in the emulsion stabilised with the α-La-EGCG covalent complex when stored at 25 °C. These results implied that protein-polyphenol covalent complexes were able to enhance the physical stability of β-carotene emulsion and inhibit the degradation of β-carotene in oil-in-water emulsion, and the effect was influenced by the types of the phenolic compounds.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 173, 15 April 2015, Pages 564-568
Journal: Food Chemistry - Volume 173, 15 April 2015, Pages 564-568
نویسندگان
Xiaoya Wang, Fuguo Liu, Lei Liu, Zihao Wei, Fang Yuan, Yanxiang Gao,