Hermetia illucens breeding method and hermetia illucens puparium composite material preparation method

Abstract

The invention discloses a hermetia illucens breeding method and a hermetia illucens puparium powder preparation method. The hermetia illucens puparium powder preparation method includes the steps of S1, drying hermetia illucens puparium and then grinding the same into powder; S2, adding powdered hermetia illucens puparium in a sodium hydroxide solution, stirring, separating and filtering; S3, adding the powdered hermetia illucens puparium in a hydrochloric acid solution, stirring, separating and filtering; S4, adding the powdered hermetia illucens puparium in another sodium hydroxide solution,stirring, separating and filtering; S5, drying the powdered hermetia illucens puparium, and then screening particles of pre-treated powder of hermetia illucens puparium. The invention further discloses a hermetia illucens puparium composite material and thin film preparation method, and an antibacterial and anti-mould additive. According to the invention, productivity of chitosan of hermetia illucens puparium can be increased effectively, prepared powdered hermetia illucens puparium can be used for preparation of hermetia illucens puparium high-polymer composite fiber, thin film and the like,and antibacterial effect is improved greatly. Further, a mixture of the powdered hermetia illucens puparium and oyster shell powder can be used as the novel antibacterial anti-mould additive.

Description

technical field [0001] The invention belongs to the field of material technology and relates to biopolymer material technology, in particular to a method for preparing black soldier fly feeding and pupal shell powder, a composite material and a film, and a novel antibacterial and antimildew additive. Background technique [0002] With the rapid development of material science and the increasing awareness of environmental protection, a large amount of leftover food waste, livestock and poultry manure... and other related agricultural and animal industry and food waste often have problems affecting the environment, air and water quality. Therefore, relevant scholars and experts have proposed The concept of "circular economy", in which, the biological cycle part is to make products from biodegradable raw materials, and the products can be preferentially applied in layers to maximize the highest value; the "biological raw materials" that cannot be applied are extracted from bioch...

AI Technical Summary

Problems solved by technology

[0006] Although the black soldier fly has many additional economic values ​​mentioned above, for example, the dried and crushed products of the black soldier fly larvae are used in pig feed, and the manure of the black soldier fly is a high-quality organic fertilizer and soil conditioner. The large amount of pupal shell produced in the process has not been further utilized. According to research, the body of the black soldier fly has a large amount of protein, lipid, oil, chitin and antimicrobial peptides. Among them, a large amount of protein in the body of the black soldier fly can After drying, grinding and crushing, it is added to pig feed, fish and shrimp feed, and has high nutritional value; most of the oil performance parameters of biodiesel produced from the animal fat contained in black soldier flies can meet the EU biodiesel standard The standard shows that the black soldier fly is enough to become a new source of biodiesel; however, the pupal shell of the black soldier fly, which has not been widely used so far, is rich in chitin and antimicrobial peptides. Among them, chitin is also known as chitin, and its Similar in chemical structure to natural cellulose, it is a special glycoprotein that can be effectively and widely used in medicine, bioengineering, light industry, food and other fields; while the black soldier fly can survive in a large amount of kitchen waste and fertilizer and will not The reason for the illness is that the black soldier fly itself has a unique immune system, which can synthesize a large amount of antimicrobial peptides in the body to kill the invading bacteria. Antimicrobial peptides are a kind of bacteria that can resist and inhibit E. Substances, insect antimicrobial peptides are natural products, and are not easy to produce drug resistance. These antimicrobial peptides have antibacterial ability against bacteria and fungi, and also have killing effects on viruses, tumor cells and protozoa

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