The fractionation of edible insects is one of the major topics related to using insects as food. Developing adequate protein recovery methods is essential to guarantee acceptable incorporation of insect protein fractions into functional food products, which in turn is essential to the development of insect-based products with higher consumer acceptance. This research aimed to produce high-purity protein concentrates from Tenebrio molitor larvae with favourable techno-functional properties, through membrane ultrafiltration with a 50 kDa cut-off, while also comparing with protein concentrates obtained through isoelectric point precipitation (IP). The protein fractions were evaluated for extraction efficiency (protein content, yield, and recovery rate), protein profile (size exclusion chromatography), and techno-functional properties (colour, foaming, and emulsifying properties, and water/oil absorption capacities). The >50 kDa fraction had a protein content above 80% (although lower than the IP fraction), while the <50 kDa fraction only had a protein content of 44.2%. Despite its high protein content, the >50 kDa fraction only attained a protein recovery rate of 27.9%, comparable to the IP fraction recovery rate. The >50 kDa fraction had higher
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|---|---|---|---|
| æè¦æµè§æ¬¡æ° | 1061 | 257 | 27 |
| å ¨ææµè§æ¬¡æ° | 41 | 9 | 0 |
| PDFä¸è½½æ¬¡æ° | 78 | 19 | 0 |
The fractionation of edible insects is one of the major topics related to using insects as food. Developing adequate protein recovery methods is essential to guarantee acceptable incorporation of insect protein fractions into functional food products, which in turn is essential to the development of insect-based products with higher consumer acceptance. This research aimed to produce high-purity protein concentrates from Tenebrio molitor larvae with favourable techno-functional properties, through membrane ultrafiltration with a 50 kDa cut-off, while also comparing with protein concentrates obtained through isoelectric point precipitation (IP). The protein fractions were evaluated for extraction efficiency (protein content, yield, and recovery rate), protein profile (size exclusion chromatography), and techno-functional properties (colour, foaming, and emulsifying properties, and water/oil absorption capacities). The >50 kDa fraction had a protein content above 80% (although lower than the IP fraction), while the <50 kDa fraction only had a protein content of 44.2%. Despite its high protein content, the >50 kDa fraction only attained a protein recovery rate of 27.9%, comparable to the IP fraction recovery rate. The >50 kDa fraction had higher
| å ¨é¨æé´ | è¿å»ä¸å¹´ | è¿å»30天 | |
|---|---|---|---|
| æè¦æµè§æ¬¡æ° | 1061 | 257 | 27 |
| å ¨ææµè§æ¬¡æ° | 41 | 9 | 0 |
| PDFä¸è½½æ¬¡æ° | 78 | 19 | 0 |