3 results about "Brown pigment" patented technology

This invention relates to a brown pigment-producing *Achromobacterium pulmonaryum* strain PHS-001 and its applications. The *Achromobacterium pulmonaryum* strain PHS-001 is deposited at the China General Microbiological Culture Collection Center (CGMCC) with accession number CGMCC No. 37838. The *Achromobacterium pulmonaryum* strain PHS-001 obtained by this invention can produce brown pigment, and the fermentation cost is low, the brown pigment extraction process is simple, and it can be used not only for dyeing protein fibers such as silk and wool, but also for dyeing synthetic fiber materials such as nylon. Furthermore, it can achieve good coloring results on fabrics containing cationic groups.

This invention relates to the field of plant tissue culture technology, specifically a method for culturing *Limonium bicolor* tissue, comprising five steps: explant preparation and sterilization, callus induction culture, adventitious shoot proliferation culture, rooting culture, and hardening-off transplanting. Modified polyvinylpyrrolidone (PVP) and modified chitosan form a composite material through borate ester bonds, which accumulates around the explant. MES maintains pH stability, allowing PPVP to continuously diffuse into the wound. Modified chitosan blocks oxygen from direct contact with the wound surface, protecting endogenous phenols; its catechol groups chelate the PPO cofactor Cu. 2+ Activated carbon adsorbs free phenolic substrates in the culture medium, reducing quinone formation at its source. Modified polyvinylpyrrolidone inhibits PPO catalytic activity; grafted ascorbic acid can reduce already formed o-quinones back to catechol, directly removing brown pigment precursors.

The utility model discloses a kind of production system of brown pigment extraction and preparation insoluble dietary fiber, it is related to bamboo shoot shell processing technical field, including bamboo shoot shell processing system, bamboo shoot residue processing system;Bamboo shoot shell processing system includes washing and draining assembly, drying assembly, crushing assembly, extraction assembly, first conveying piece, cleaning spray head, draining spray head;Second conveying piece and heating part are equipped in drying assembly inside;Extraction assembly is externally connected with first neutralizing part, concentration instrument;Bamboo shoot residue processing system includes with second neutralizing part, first stirring part, filter pressing part;Different angle washing is carried out to bamboo shoot shell by high-pressure water flow and using high-pressure airflow to blow water droplet on bamboo shoot shell away, and the bamboo shoot shell is washed and drained quickly, drying assembly carries out drying to bamboo shoot shell, after crushing, bamboo shoot shell is extracted, concentrated to obtain brown pigment, after extraction, bamboo shoot shell filter residue is treated by neutralization stirring, after filter pressing, the filter residue is washed and dried again, crushing is used for preparing insoluble dietary fiber, improve the utilization of bamboo shoot shell.