مشخصات پژوهش

عنوان	Optimization of whey protein isolate-quince seed mucilage complex coacervation
نوع پژوهش	مقاله چاپ‌شده در مجلات علمی
کلیدواژه‌ها	Quince seed mucilage, Whey protein isolate, Biopolymers interaction, Electrical conductivity, Turbidity, Complex coacervates
چکیده	In this study, the complex coacervation of whey protein isolate (WPI) and quince seed mucilage (QSM) was studied as a function of pH (7.0–2.0), biopolymers concentration (0.05, 0.1 and 0.5%) and WPI:QSM ratio (10:90 to 90:10), according to protolytic titration, electrical conductivity (EC) and turbidity analyses. The solution containing 0.5% biopolymers with WPI:QSM ratio of 70:30 resulted in maximum complex coacervation at the pHopt 4.0. With increasing WPI:QSM ratio, the peaks of pH-turbidity curves shifted to higher pH values, and with increasing biopolymers concentration, the optimum WPI:QSM ratio and pH shifted to higher values. The EC of biopolymers solutions (concentration 0.5%) increased by decreasing pH and WPI:QSM ratio. The aforementioned optimum condition resulted coacervates with maximum particles size (16.22 μm) and minimum ζ-potential (−5.1 mV), which were observed as densely agglomerated macro-complexes with highest coacervation yield (80.67%). The X-ray analysis showed that coacervates retain the amorphous structure of individual biopolymers. These coacervates may be useful for encapsulation and delivery of (bio-) active compounds.
پژوهشگران	فردین تمجیدی (نفر سوم)، اصغر خسروشاهی اصل (نفر دوم)، رضا قادرمزی (نفر اول)