EFFECT OF REACTION CONDITIONS ON THE HYDROLYSIS OF WOOL KERATINS
Journal Title: Annals of the University of Oradea. Fascicle of Textiles, Leatherwork - Year 2017, Vol 0, Issue 1
Abstract
Every year millions of tons of keratinous wastes are generated worldwide, therefore from an economic and environmental point of view, it is worthwhile developing processes to use and reuse these resources. Many different procedures and methods can be applied to obtain keratin hydrolysates. Microwave heating is based upon the ability of a particular substance to absorb microwave energy and convert the electromagnetic energy to heat (kinetic energy). An extension of this is application in the field of proteomics (the study of proteins and in particular their struc¬ture and function). Large complex proteins can be broken into smaller parts by using microwave heating. This work aimed to perform microwave-assisted hydrolysis of wool keratin wastes in different experimental conditions, and compare it with a conventional method of alkaline hydrolysis, in order to study the efficiency of the treatment induced by this field on the reaction products, subsequently analyzed by specific methods. It was studied the influence of the reaction conditions (reaction time and working recipe) on the keratin hydrolysis yield, and also were analysed the structural changes induced by hydrolysis. A significant reduction of reaction time concurrent with a higher hydrolysis yield was obtained by microwave hydrolysis regardless of the alkali mixtures used; better results were obtained for 60 min treatment. IR analysis performed highlight the structural modifications induced by hydrolysis conditions, the process carried out by means of microwaves leading to a lower degradation of hydrolysis products.
Authors and Affiliations
Tudorel BĂLĂU MÎNDRU, Iulia BĂLĂU MÎNDRU
Keywords
Related Articles
- EP ID EP218594
- DOI -
- Views 117
- Downloads 0
A REVIEW ON HEAVY METALS CONTENTS IN HIDE, SKIN AND PROCESSED LEATHERS
Heavy metals are metals with high atomic weight which can be deposited in soil, water, plants and animals. It is generally known that mammal tissues are good bioindicators of trace elements, including heavy metals. Heavy...
THE SOFTWARE APPLICATION FOR MATHEMATICAL MODELLING OF TECHNOLOGICAL PROCESS IN TEXTILE INDUSTRY
This paper presents a statistical processing program of the experimental data by a program a second degree central composite rotatable in order to obtain a mathematical model and the graphic representation thereof. The p...
THE PSYCHOLOGICAL IMPACT OF PERSONALISED TEPESTRY INSIDE PUBLIC MEANS OF CONVEYANCE ON PASSENGER – STUDY CASE
The present paper wishes to present the effects of the personalisation of tapestry inside public means of conveyance on the passengers’ psychology. Thus, a study case is presented, regarding a project from May 2016. The...
TANNED LEATHERS PROPERTIES MODIFICATION AS A RESULT OF ARTIFICIAL AGEING
Leather is a high tech material with different application fields, such as automotive, manufacturing of leatherwear articles or clothing and footwear. Leather is a biomaterial obtained by processing animal skins. Unfortu...
A VIEW ON THE ROMANIAN TEXTILE INDUSTRY IN THE EUROPEAN CONTEXT
The textile market of the European Union is a highly competitive one, being recognised at an international level as one of the most important players in this domain. An important factor that has led to this achievement w...