干旱区生态环境知识资源中心(Arid): Autogenous Cross-Linking of Recycled Keratin from Poultry-Feather Waste to Hydrogels for Plant-Growth Media

Arid

DOI	10.3390/polym13203581
	Autogenous Cross-Linking of Recycled Keratin from Poultry-Feather Waste to Hydrogels for Plant-Growth Media
	Brenner, Markus; Weichold, Oliver
通讯作者	Weichold, O (corresponding author), Rhein Westfal TH Aachen, Inst Bldg Mat Res, Schinkelstr 3, D-52062 Aachen, Germany.
来源期刊	POLYMERS
EISSN	2073-4360
出版年	2021
卷号	13 期号:20
英文摘要	The global rise in atmospheric temperature is leading to an increasing spread of semi-arid and arid regions and is accompanied by a deterioration of arable land. Polymers can help in a number of ways, but they must not be a burden to the environment. In this context, we present herein a method by which goose feathers, representative of keratin waste in general, can be transformed into hydrogels for use as a plant growth medium. The treatment of shredded feathers in Na2S solution at ambient conditions dissolves approx. 80% of the keratin within 30 min. During evaporation, the thiol groups of cysteine reoxidise to disulphide bridges. Additionally, the protein chains form beta-sheets. Both act as cross-links that enables the formation of gels. The drying conditions were found to be crucial as slower evaporation affords gels with higher degrees of swelling at the cost of reduced gel yields. The cress germination test indicated the absence of toxic substances in the gel, which strongly adheres to the roots. Thereby, the plants are protected from drought stress as long as the gel still contains moisture.
英文关键词	poultry feathers waste utilisation renewable materials biobased materials keratin hydrogel keratin extraction super-absorber water absorption plant growth controllable swelling
类型	Article
语种	英语
开放获取类型	Green Published, gold
收录类别	SCI-E
WOS记录号	WOS:000715102200001
WOS关键词	RELEASE NITROGEN-FERTILIZER ; NUTRITIONAL IMPROVEMENT ; ORGANIC SOURCES ; SODIUM SULFIDE ; EXTRACTION ; CYSTINE ; PROTEIN ; IDENTIFICATION ; SPECTROSCOPY ; DISSOLUTION
WOS类目	Polymer Science
WOS研究方向	Polymer Science
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/368352
作者单位	[Brenner, Markus; Weichold, Oliver] Rhein Westfal TH Aachen, Inst Bldg Mat Res, Schinkelstr 3, D-52062 Aachen, Germany
推荐引用方式 GB/T 7714	Brenner, Markus,Weichold, Oliver. Autogenous Cross-Linking of Recycled Keratin from Poultry-Feather Waste to Hydrogels for Plant-Growth Media[J],2021,13(20).
APA	Brenner, Markus,&Weichold, Oliver.(2021).Autogenous Cross-Linking of Recycled Keratin from Poultry-Feather Waste to Hydrogels for Plant-Growth Media.POLYMERS,13(20).
MLA	Brenner, Markus,et al."Autogenous Cross-Linking of Recycled Keratin from Poultry-Feather Waste to Hydrogels for Plant-Growth Media".POLYMERS 13.20(2021).