Influence of pectinase enzyme Beisol PRO on hemp fibres retting

Abstract

The analysis of hemp cultivation and usage trends in the world and Europe shows that hemp cultivation and processing in Latvia has good perspectives. This paper presents the results of a first study about the usage of pectinase enzyme Beisol PRO (4% water solution) for Latvian hemp sort "Purini" retting at different time and temperatures conditions and treatment influence on obtained fibres quality. Gravimetrical examination of the quantity of fibres and sheaves after retting, physical-mechanical tests and TG analysis, colour properties, and selected samples microscopy evaluation show that enzyme treatment is not significant for fibre separation from stem as well as TG characteristics at investigated time and temperature conditions. Use of pectinase enzyme for hemp retting in some cases increases tensile strength of fibres and causes changes of colour characteristics.

The morphological and anatomical variability of the stems of an industrial hemp collection and the properties of its fibres

“…The yellowness index was significantly higher in chemically retted fibres compared with the other two methods. Fibres obtained by the enzymatic method exhibited mainly greenish colour shades, which is consistent with a prior study ( Bernava et al., 2015 ). This effect was greater with the microbial retting method, probably due to retaining some pigments during the enzymatic and microbial retting compared with the chemical method.…”

Microbial pectinases: an ecofriendly tool of nature for industries

“…Yadav and coworkers ( 2009 ) are the first to report the enzymatic retting of hemp and flax using pectin lyase from Aspergillus terricola (Table 4 ). Retting of Latvian hemp sort “Purini” by using pectinase enzyme has been reported by Bernava, ( 2015 ). For the manufacture of textiles from ramie fibres, a gum content of <6 % is desired (Bhattacharya and Paul 1976 ).…”

Industrial Applications of Pectinases

“…Retting of Latvian hemp sort "Purini" by use of pectinases has been reported by Table : 6 Extraction of oil from oil-bearing material using enzymatic processing. Bernava. (2015).…”