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Journal of Industrial and Environmental Chemistry
|
Volume 2
GREEN CHEMISTRY &
TECHNOLOGY
7
th
International Conference on
J u n e 1 8 - 2 0 , 2 0 1 8 | D u b l i n , I r e l a n d
BIOREFINERY OF WILD CASTOR SEED FOR SYNTHESIS OF GREEN
PRODUCTS
Satya Narayan Naik, Subhalaxmi Pradhan, Bhushan Dole
and
Devesh Saxena
Centre for Rural Development and Technology, Indian Institute of Technology, New Delhi
B
iorefinery is a concept of utilization of bio-based materials in an integrated manner to develop different products from
the by-product of one process that can be the feedstock for other. This process is capable of providing a variety of
products of various industrial applications from biomass. This paper deals with biorefinery approach of Non-edible oil seed
crop Castor to produce different green materials. Castor seed is rich source of oil and due to high viscosity the oil is mainly
used for biolubricant production. But the transesterified oil can be better adopted as biolubricantand biodiesel. Castor oil
alkyl esters are produced directly for castor seed by reactive extraction (RE). Reactive extraction is both extraction and
transesterification of vegetable oil directly from raw agricultural material. Reactive extraction of castor seed was carried
out using different alcohols acting as both extracting solvent and transesterification reagent. It was found that the yield
of reactive extraction is low in higher alcohols due to decrease in oil extraction efficiency. During RE process measurable
amount of cake and glycerol is produced as a by-product. The seed cake is rich in protein and carbohydrates which can be
used for bioethanol production and that alcohol will be again utilized in transesterification. Bio-enzymes can be produced by
solid state fermentation of cakes. The glycerol obtained during this process is converted to monoglycerides by Glycerolysis
reaction. Monoglycerides synthesised by this process can be used as biosurfactants. Utilization of theses by-products to
value added product will reduce the cost of biodiesel/biolubricant production. So Non-edible oil based biorefinery can be
set for production of Biofuels (Bioethanol, Biodiesel) and Bio-products (Biosurfactants, Biolubricants, Bio-enzymes) from
Castor seed. So this process will develop a biorefinery technology for production of different green products from castor
seed.
J Ind Environ Chem 2018, Volume 2 | DOI: 10.4066/2591-7331-C1-003