Recovery of protein from discharged wastewater during the production of chitin.
Studies were carried out to optimize the conditions for the recovery of protein. The results showed that pH of 6.00 for wastewater, the dosage of 1% chitosan solution in 1% acetic acid aqueous solution of 2.0 ml for 50 ml wastewater and 1% FeCl(3) aqueous solution of 2 ml for 5 0ml wastewater, the flocculation time of 4.0 h were the optimal conditions for the recovery of protein. The obtained protein sediment contained abundant amino acids, especially isoleucine, methione and lysine that are absent in other protein resource.
Chen
Xiaolin
X
Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, China.
Li
Cuiping
C
Ji
Xia
X
Zhong
Zhimei
Z
Li
Pengcheng
P
D000596:Amino Acids; D002686:Chitin / Q000138:chemical synthesis*; D048271:Chitosan / Q000737:chemistry; D002712:Chlorides; D005290:Ferric Compounds / Q000737:chemistry; D005427:Flocculation; D006863:Hydrogen-Ion Concentration; D011506:Proteins / Q000302:isolation & purification*; D013997:Time Factors; D014865:Waste Disposal, Fluid
D000596:Amino Acids; D002712:Chlorides; D005290:Ferric Compounds; D011506:Proteins; D002686:Chitin; D048271:Chitosan; C024555:ferric chloride