Application of recombinant hyperthermostable keratinase for degradation of chicken feather waste

Author(s):  
Saranya Parinayawanich ◽  
Duangjai Sittipol ◽  
Ya’u Sabo Ajingi ◽  
Sudarut Rodpan ◽  
Kovit Pattanapanyasat ◽  
...  
2020 ◽  
Author(s):  
Ansarullah ◽  
Ramli Rahim ◽  
Baharuddin Hamzah ◽  
Asniawaty Kusno ◽  
Muhammad Tayeb

Chicken feathers are the result of waste from slaughterhouses and billions ofkilograms of waste produced by various kinds of poultry processing. This hal is a veryserious problem for the environment because it causes the impact of pollution. Hasmany utilization of chicken feather waste such as making komocen, accessories,upholstery materials, making brackets to the manufacture of animal feed but from theresults of this activity cannot reduce the production of chicken feathers that hiscontinuously increase every year. This is due to the fact that the selling price of chickenmeat has been reached by consumers with middle to upper economic levels. This caneasily be a chicken menu in almost all restaurants and restaurants to the food stalls onthe side of the road. An alternative way of utilizing chicken feathers is to makecomposite materials in the form of panels. Recent studies have shown that the pvacmaterial can be utilized as a mixing and adhesive material with mashed or groundfeathered composites to form a panel that can later be used as an acoustic material.The test results show that the absorption of chicken feathers and pvac glue into panelscan absorb sound well with an absorption coefficient of 0.59, light. This result is veryeconomical so it is worth to be recommended as an acoustic material. Apart from theresults of research methods carried out is one of the environmentally friendly activitiesin particular the handling of waste problems


2019 ◽  
Vol 18 (1) ◽  
Author(s):  
Zheng Peng ◽  
Xinzhe Mao ◽  
Juan Zhang ◽  
Guocheng Du ◽  
Jian Chen

2017 ◽  
Vol 10 (1) ◽  
pp. 1-11 ◽  
Author(s):  
Pintubala Kshetri ◽  
Subhra Saikat Roy ◽  
Susheel Kumar Sharma ◽  
Thangjam Surchandra Singh ◽  
Meraj Alam Ansari ◽  
...  

2013 ◽  
Vol 747 ◽  
pp. 711-714 ◽  
Author(s):  
Siriorn Isarankura Na Ayutthaya ◽  
Jatuphorn Woothikanokkhan

Keratins were extracted from chicken feather waste by sulphitolysis method, using various sodium metabisulphite contents. The extracted keratin was characterized by FT-IR and gel electrophoresis (SDS-PAGE) techniques. The extracted keratin with the highest molecular weight (12-20 kDa) was then selected for further study on electrospinning. The keratin/PLA solutions with a variety of blending ratios (10/90 to 90/10 w/w) were prepared before fabrication by electrospinning process. Morphology of the electrospun fiber was examined by using SEM technique, From the results, it was found that keratin/PLA blends containing 90 %wt of keratin could not be electrospun into fiber. By decreasing the keratin content to below 70 %wt, the blend solution can be electrospun into fiber. FT-IR spectrum of the keratin/PLA fiber showed the presence of peaks representing both keratin and PLA. These results confirmed that the fiber composed of both polymeric phases.


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