Effect of germination, roasting, and variety on physicochemical, techno-functional, and antioxidant properties of chickpea (Cicer arietinum L.) protein isolate powder

被引:28
作者
Mesfin, Nobel [1 ]
Belay, Abera [1 ]
Amare, Endale [2 ]
机构
[1] Addis Ababa Sci & Technol Univ, Coll Appl Sci, Dept Food Sci & Appl Nutr, POB 16417, Pobox, Ethiopia
[2] Ethiopian Publ Hlth Inst, Food Sci & Nutr Res Directorate, POB 1242, Addis Ababa, Ethiopia
关键词
Chickpea protein isolate; Proximate composition; Antioxidant properties; Techno-functional properties; Antinutritional factor; CHEMICAL-COMPOSITION; NUTRITIONAL QUALITY; BIOACTIVE COMPOUNDS; LEGUMES; PEA; FERMENTATION; TEMPERATURE; CEREALS; IMPACT; TANNIN;
D O I
10.1016/j.heliyon.2021.e08081
中图分类号
O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];
学科分类号
07 ; 0710 ; 09 ;
摘要
Chickpeas are a very important part of the human diet due to their nutritional and bioactive composition. Ethiopia is one of the top chickpea producers and consumers of chickpea-based products daily. However, limited studies were conducted on the effect of common processing methods, roasting and germination, on techno-functional and nutritional properties of chickpea protein isolates. Two varieties of chickpea, Arerti (Kabuli type) and Natoli (Desi type), were selected and treated with different roasting temperature (150 and 180 degrees C) and germination time (24, 48, and 72 h). The protein was isolated with alkaline-solubilization followed by isoelectric precipitation. Freezedried isolates were investigated for proximate composition, techno-functional properties, antioxidant properties, and antinutritional content. Chickpea protein isolates (CPIs) mean protein content was between 79.72 and 87.43%, comparatively lower for those from roasted and higher for those from germinated chickpea. Mean values of CPIs' water holding capacity (WHC), oil holding capacity (OHC), protein solubility (PS), foaming capacity (FC), and Emulsifying capacity (EC) for both varieties were in a range of 1.07-2.47 g/g, 1.40-2.21 g/g, 43.88-69.99%, 14.00-94.00%, and 56.44-84.16%, respectively. Roasting at 150 degrees C improved most of the techno-functional properties (WHC, OHC, PS, and FC) while roasting at 180 degrees C negatively affected almost all the technofunctional properties. Both heat treatments significantly increased the antioxidant properties of the isolates. Germination for 72 h was the best treatment in improving all antioxidant properties. CPIs from treated chickpea had lower antinutritional content than those from native chickpea except for phytate on Natoli variety where no statistical difference (p > 0.05) was observed. The finding showed that based on the intended use the different techno-functional properties of the isolates can be altered by applying those treatments. Proximate, technofunctional, antioxidant, and antinutritional characters indicated that CPIs can be a good ingredient for the food industry to formulate functional foods.
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页数:8
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