Online ISSN: 2515-8260

Keywords : lignin degradation


ENERGY VALUATION OF HYDROXYALKANOATES AS BIOPOLYMER MEDIATED LIGNIN DEGRADATION OF LIGNOCELLULOSE WASTE

Gujar Anantkumar Jotiram; Milind Shivaji Rohokale; A. Dyson Bruno; Yogesh Kumar Agarwal; Gourav kalra

European Journal of Molecular & Clinical Medicine, 2020, Volume 7, Issue 2, Pages 3302-3312

In this study, lignin degradation of lignocellulose waste using biopolymer as derived from
agro waste. Initially, biopolymer was extracted by optimizing recovery time and rhamnolipid
dose. At 50 min of recovery time and 25 % v/v of rhamnolipid dose, a higher of biopolymer
(825 mg/g) was derived. The functional group of biopolymer was predicted and it is exhibited
the hydroxyalkanoates group. Then, hydroxyalkanoates mediated lignin degradation of
lignocellulose waste was proceeded at optimizing conditions.At 27 min of degradation time
and 5 mg of hydroxyalkanoates dose, a higher lignin degradation (52 %) were descried which
is higher than non treated lignocellulose waste. Further, the energy valuation of
hydroxyalkanoates mediated lignin degradation per kg of lignocellulose waste was studied.
During energy valuation, energy expended for centrifugation, drying, stiring, incubation,
control the temperature of lignocellulose waste and hydroxyalkanoates extraction were
considered as the input energy for lignin degradation steps and is measured as 217 kWh 
Energy content of lignocellulose sample after lignin degradation was considered as output
and is measured as 310 kWh. Net energy was assessed by the difference of output and input
energy and is espied as 93 kWh /kg of waste.