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源自皮革废料的基于胶原蛋白的水凝胶复合材料用于生产智能肥料。

Collagen-Based Hydrogels Composites from Hide Waste to Produce Smart Fertilizers.

作者信息

Stefan Daniela Simina, Zainescu Gabriel, Manea-Saghin Ana-Maria, Triantaphyllidou Irene-Eva, Tzoumani Ioanna, Tatoulis Triantafyllos I, Syriopoulos George Τ, Meghea Aurelia

机构信息

Department of Analytical Chemistry and Environmental Engineering, Faculty of Applied Chemistry and Materials Science, University Politehnica of Bucharest, 1-7 Polizu str., RO-011061 Bucharest, Romania.

National R&D Research Institute for Textile and Leather Division: Leather and Footwear Research Institute, 93 Ion Minulescu str., RO-031215 Bucharest, Romania.

出版信息

Materials (Basel). 2020 Oct 1;13(19):4396. doi: 10.3390/ma13194396.

DOI:10.3390/ma13194396
PMID:33019785
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC7579580/
Abstract

The study aims at reusing and recycling the protein hide waste from the leather industry in ecological conditions by elaborating an innovative procedure in order to obtain a collagen matrix functionalized with nitrogen, phosphorus, and potassium (NPK) nutrients to be used for preparing smart fertilizers. This is an interdisciplinary approach, as it starts from hide waste raw material as a critical industrial waste, which is then subjected to several technological steps by selection of optimal processing parameters, followed by product fabrication at the laboratory, and next scales to the industrial pilot plant to obtain novel agro-hydrogels. In this context, the technology scheme for collagen hydrolysate with encapsulated nutrients was proposed and the process parameters were optimized by functionalization of agro-hydrogels with various natural and synthetic polymers, such as polyacrylamide, poly(sodium 4-styrenesulfonate-co-glycidyl methacrylate) copolymer, starch or dolomite. Based on the laboratory experiments, a pilot plant was constructed and tested. Taking as reference the collagen hydrolysate with encapsulated nutrients, the new fertilizers were adequately characterized by chemical analysis, determination of biodegradability and the degree of release of oxidable compounds in water. Based on the biodegradation mechanism and kinetic analysis of oxidable compounds release, adequate arguments are evidenced to demonstrate that these fertilizers can be applied for amendment of poor agricultural soils.

摘要

本研究旨在通过制定一种创新程序，在生态条件下对皮革工业产生的蛋白质皮废料进行再利用和回收，以获得一种用氮、磷、钾（NPK）养分功能化的胶原蛋白基质，用于制备智能肥料。这是一种跨学科方法，因为它从作为关键工业废料的皮废料原料开始，然后通过选择最佳加工参数进行几个技术步骤，接着在实验室进行产品制造，最后扩大规模到工业中试工厂以获得新型农业水凝胶。在此背景下，提出了具有包封养分的胶原蛋白水解物的技术方案，并通过用各种天然和合成聚合物（如聚丙烯酰胺、聚（4-苯乙烯磺酸钠-共-甲基丙烯酸缩水甘油酯）共聚物、淀粉或白云石）对农业水凝胶进行功能化来优化工艺参数。基于实验室实验，构建并测试了一个中试工厂。以具有包封养分的胶原蛋白水解物为参考，通过化学分析、生物降解性测定以及水中可氧化化合物的释放程度对新型肥料进行了充分表征。基于可氧化化合物释放的生物降解机制和动力学分析，有充分论据证明这些肥料可用于改良贫瘠的农业土壤。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/a82ea123ea7b/materials-13-04396-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/fec1e92c0689/materials-13-04396-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/170b5ffb226e/materials-13-04396-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/8ee52f31402b/materials-13-04396-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/16aa481dcead/materials-13-04396-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/22e1c34e353c/materials-13-04396-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/36298b1f3335/materials-13-04396-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/3bcadfdd3519/materials-13-04396-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/0f39e6061a00/materials-13-04396-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/440ce95b6a03/materials-13-04396-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/a82ea123ea7b/materials-13-04396-g010.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/fec1e92c0689/materials-13-04396-g001.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/170b5ffb226e/materials-13-04396-g002.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/8ee52f31402b/materials-13-04396-g003.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/16aa481dcead/materials-13-04396-g004.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/22e1c34e353c/materials-13-04396-g005.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/36298b1f3335/materials-13-04396-g006.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/3bcadfdd3519/materials-13-04396-g007.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/0f39e6061a00/materials-13-04396-g008.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/440ce95b6a03/materials-13-04396-g009.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/2bc4/7579580/a82ea123ea7b/materials-13-04396-g010.jpg

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