Impact of hexane defatting on characteristics of Patanga succincta L. powder and its application on nutritional improvement of biscuit stick
2021
Indriani, S. | Nalinanon, S. | Karnjanapratum, S.
Impact of hexane defatting on physicochemical, oxidative stability and total volatile compounds of Bombay locust (Patanga succincta L.) powder ‘BL’ were studied. Defatted insect powder (F/BL) showed marked decrease in fat content (1.2%) with significantly (P≤0.05) higher protein content (78.7%), compared with those of BL (29.8% fat and 56.5% protein). Based on electrophoresis result, hexane defatting had no effect on peptide distribution of insect powders. F/BL had lower peroxide value with better oxidative stability (P≤0.05), while less variety of volatiles with more off-flavour compounds, particularly lipid oxidation and insect hormone odours, were observed from BL. F/BL was confirmed as an excellent source of amino acids and minerals. The physicochemical and sensory properties of F/BL fortified biscuit stick and the final products were determined. F/BL fortified biscuit stick showed a better acceptance, compared with those from BL at the same level used. Based on sensory characteristics, biscuit stick with 10% F/BL (F/BL-10) was selected and studied for its chemical composition and microstructure. F/BL-10 possessed more porous structure with higher protein and lower energy value, compared with those from 10% BL. Overall, defatted Bombay locusts could be an effective alternative protein source with excellent applicability to baked products, particularly biscuit stick.
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