Effect of dual modification of sonication and γ-irradiation on physicochemical and functional properties of lentil (Lens culinaris L.) starch.
Starch isolated from lentil was subjected to two treatments namely sonication and, a dual treatment of sonication and irradiation at a dose of 5kGy. Lentil yielded 26.12±1.56g starch/100g of lentil. Chemical composition of native starch revealed 7.83±0.28% moisture, 0.23±0.30% protein, 0.35±0.05% fat and 0.10±0.00% ash. The results revealed that pasting properties of lentil starch were not affected upon sonication. However, these decreased significantly (p≤0.05) upon dual treatments. Amylose content of native starch was 31.16±1.80g/100g which showed a decrease upon sonication and dual treatments. Sonication and dual treatments (sonication and irradiation) decreased hunter 'L' value while 'a' and 'b' values showed an increase. Syneresis decreased more or less insignificantly upon sonication. However, a significant decrease in syneresis was observed after 120h storage following dual treatments. Sonication did not decrease the functional properties significantly while as dual treatment induced a significant decrease in functional properties. FT-IR analysis revealed a decrease in the intensities of OH, CH and OC stretches and CH2bending upon sonication and dual treatments.
Department of Food Science and Technology, University of Kashmir, Hazratbal, Srinagar 190006, India.
Toiba
T
Majeed
Department of Food Science and Technology, University of Kashmir, Hazratbal, Srinagar 190006, India. Electronic address: idwani07@gmail.com.
Idrees Ahmed
IA
Wani
Astrophysical Sciences Division, Nuclear Research Laboratory, Bhabha Atomic Research Centre, Zakura, Srinagar 190006, India.
Peerzada Rashid
PR
Hussain
D055598:Chemical Phenomena; D005720:Gamma Rays; D027806:Lens Plant / Q000737:chemistry*; D012995:Solubility; D013010:Sonication; D013213:Starch / Q000737:chemistry*; D014867:Water / Q000737:chemistry
D014867:Water; D013213:Starch
Irradiation; Lentil; Pasting; Sonication; Starch