{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,31]],"date-time":"2026-03-31T00:41:42Z","timestamp":1774917702846,"version":"3.50.1"},"reference-count":176,"publisher":"Frontiers Media SA","license":[{"start":{"date-parts":[[2022,6,20]],"date-time":"2022-06-20T00:00:00Z","timestamp":1655683200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100009075","name":"Guangdong Academy of Sciences","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100009075","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["frontiersin.org"],"crossmark-restriction":true},"short-container-title":["Front. Microbiol."],"abstract":"<jats:p>Keratin-containing wastes become pollution to the environment if they are not treated properly. On the other hand, these wastes can be converted into value-added products applicable to many fields. Organic fertilizers and biofertilizers are important for sustainable agriculture by providing nutrients to enhance the growth speed of the plant and production. Keratin-containing wastes, therefore, will be an important resource to produce organic fertilizers. Many microorganisms exhibit capabilities to degrade keratins making them attractive to convert keratin-containing wastes into valuable products. In this review, the progress in microbial degradation of keratins is summarized. In addition, perspectives in converting keratin into bio- and organic fertilizers for agriculture are described. With proper treatment, feather wastes which are rich in keratin can be converted into high-value fertilizers to serve as nutrients for plants, reduce environmental pressure and improve the quality of the soil for sustainable agriculture.<\/jats:p>","DOI":"10.3389\/fmicb.2022.918262","type":"journal-article","created":{"date-parts":[[2022,6,20]],"date-time":"2022-06-20T07:24:58Z","timestamp":1655709898000},"update-policy":"https:\/\/doi.org\/10.3389\/crossmark-policy","source":"Crossref","is-referenced-by-count":25,"title":["Perspectives on Converting Keratin-Containing Wastes Into Biofertilizers for Sustainable Agriculture"],"prefix":"10.3389","volume":"13","author":[{"given":"Qingxin","family":"Li","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"1965","published-online":{"date-parts":[[2022,6,20]]},"reference":[{"key":"B1","doi-asserted-by":"publisher","first-page":"609","DOI":"10.3126\/ijasbt.v3i4.13683","article-title":"Novel keratinolytic activity of cyberlindnera fabianii nrc3 aza as a plant growth promoting agent (PGPA)","volume":"3","author":"Abdel-fattah","year":"2015","journal-title":"Int. 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