کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7596424 | 1492127 | 2014 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Influence of sulphate, chloride, and thiocyanate salts on formation of β-lactoglobulin-pectin microgels
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کلمات کلیدی
AFMKClBLGNaClMicrogelK2SO4NH4SCN(NH4)2SO4 - (NH4) 2SO4β-Lactoglobulin - β-لاکتوگلوبولینAmmonium thiocyanate - آمونیوم تیو سیناکAggregation - تجمعSodium chloride - سدیم کلریدAmmonium sulphate - سولفات آمونیومPotassium sulphate - سولفات پتاسیمatomic force microscopy - میکروسکوپ نیروی اتمیHofmeister - هافمنیستPectin - پکتینPotassium chloride - کلرید پتاسیم
موضوعات مرتبط
مهندسی و علوم پایه
شیمی
شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله

چکیده انگلیسی
Effects of sulphate, chloride, and thiocyanate salts on the heat-induced formation of protein-based microgels from β-lactoglobulin-pectin complexes were determined as a function of pH and protein-to-polysaccharide ratio. Aggregation temperatures were initially decreased at low ionic strength due to shielding of electrostatic interactions between β-lactoglobulin and pectin but increased with further increases in ionic strength. Turbidity of heated mixtures and associated sizes of formed microgels were increased with up to 75 mmol kgâ1 ionic strength. Aggregation and microgel formation were relatively increased in the presence of thiocyanate salts compared to chloride salts and relatively decreased in the presence of sulphate salts, indicating that the inverse Hofmeister series was relevant in this system. Topographical analysis of dried microgels by atomic force microscopy verified that microgels were smallest in the presence of sulphate salts and showed that added ions, particularly thiocyanate, increased the deformability of microgels during drying.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Food Chemistry - Volume 164, 1 December 2014, Pages 63-69
Journal: Food Chemistry - Volume 164, 1 December 2014, Pages 63-69
نویسندگان
Stacey Hirt, Owen G. Jones, Marilyn Adijanto, Jay Gilbert,