Insects are the most successful organisms on earth in terms of their diversity and adaptability. Insect biotechnology using this insect resource is an emerging area for future biotechnology with various applications. Insect resources have long been used to make food and/or functional food, feed, cosmetics as well as medicine and industrial ingredients. Recently, one of the most well-known industrial material from insect is spider silk that could be commercialize in near future. The insect cell lines have been used to express recombinant proteins that were difficult to be functional expression. For public purpose, while, the insect could be good amenity source and plant farming, so leisure resource. Only the interdisciplinary research will guarantee the successful story for insect biotechnology. And biochemical engineers should used insect as a bioresource for new products with applications in medicine, agriculture, and industrial biotechnology in near future. This review will cover state-of-the art of this field and the research and application areas of insect biotechnology and the possible role of biochemical engineer for the development of the future biotechnology using this bioresource.
1) To develop potential cosmetic ingredients with antimicrobial and antioxidant activities of 4 Korean bamboo species (P. bambusoides, P. nigra var. henonis, P. pubescens and Sasa coreana) using three different extraction methodswater, ethanol and supercritical fluid extraction. Antimicrobial activities and DPPH assay have been examined. Among the antimicrobial activities against two test strains, Escherichia coli and Staphylococcus aureus, ethanol extracts of 3 bamboo trees, P. bambusoides, P. nigra var. henonis, and P. pubescens, showed stronger than those of supercritical extracts. However, 4 bamboo supercritical extracts showed dose-dependent increase in antioxidant activity by DPPH assay. These results suggest that water fraction of bamboo extracts may be useful for the cosmetic ingredient with low cytotoxicity.
Wheat sprout (Triticum aestivum) shows excellent nutritional and health effects due to the contents in amino acids, minerals, and other nutrients rich in chlorophyll and vitamins. In this study, spent coffee grounds were used to cultivate the wheat sprout for 12 day. An amount of 0%, 20%, 40%, 60%, 80%, and 100% (w/w, based on commercial sterile soil media) spent coffee grounds were used under the same conditions. Total length and weight of wheat sprout, aboveand below-ground length and weight, and the chloropyll contents were compared. Soil media were analyzed before and after wheat cultivation, showing that 40% and 60% (w/w) coffee media promoted wheat growth in view of length and weight. Chlorophyll contents in each group showed almost constant values, while 100% (w/w) coffee media led to a slight decrease. In conclusion, spent coffee grounds stimulated wheat growth, showing nearly stable contents of chlorophyll.
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