Complex enzyme generated by aspergillus niger and application thereof in boiling-off of flax roving

Abstract

The invention discloses a complex enzyme generated by aspergillus niger. The complex enzyme is prepared by taking aspergillus niger HYA4 with the preserving number of CGMCCNo.1897 as a strain through incline preservation and culture, solid fermentation and culture and leaching filtration and preparation, wherein a culture medium for the solid fermentation comprises bran, straw powder and ammonium sulfate; and the invention has the advantages that the used aspergillus niger HYA4 strain is at a food safety level and has no toxicity, large enzyme yield, complete enzyme system and more extensive culture condition. The cultured complex enzyme not only has very strong pectinase activity but also has very strong cellulase activity. The used complex enzyme can enhance the split degree of flax fibre, reduces nep and hair feather obviously, lowers the strength loss of yarn, also solves injuries caused by a chlorine bleach process to a worker and the environment thoroughly and has multiple advantages of saving water and electricity, reducing the treatment cost of sewage, lowering the production cost and the like.

Description

Technical field: [0001] The invention relates to a compound enzyme produced by Aspergillus niger, and also relates to an application method of the compound enzyme in flax roving scouring. Background technique: [0002] The scouring of flax roving is the key process of flax spinning processing. The purpose is to remove natural impurities such as pectin, lignin and wax in flax roving, so that the fibers have better separation and water absorption To improve the spinnability of flax fiber. The traditional flax roving scouring process adopts chemical methods, which are realized by boiling sodium hydroxide under certain temperature and pressure conditions. This traditional scouring process has many disadvantages. The first is that it consumes a lot of energy and water, and it needs to discharge a large amount of strong alkali wastewater, which not only wastes a lot of water resources, but also has serious environmental pollution problems. The second is that the process conditio...

AI Technical Summary

Problems solved by technology

This traditional scouring process has many disadvantages. The first is that it consumes a lot of energy and water, and it needs to discharge a large amount of strong alkali wastewater, which not only wastes a lot of water resources, but also has serious environmental pollution problems.

The second is that the process conditions of alkali scouring are strict, the cost is high, and the damage to the flax fiber is great, which will also have a great impact on the internal quality of the fabric.

Due to the short period of this research, there are not many published materials at present, especially the lack of relevant biological enzyme preparations, which seriously restricts the development speed of this industry.