Utilization of oleo-chemical industry by-products for biosurfactant production

Abstract

Biosurfactants are the surface active compounds produced by micro-organisms. The eco-friendly and biodegradable nature of biosurfactants makes their usage more advantageous over chemical surfactants. Biosurfactants encompass the properties of dropping surface tension, stabilizing emulsions, promoting foaming and are usually non- toxic and biodegradable. Biosurfactants offer advantages over their synthetic counterparts in many applications ranging from environmental, food, and biomedical, cosmetic and pharmaceutical industries. The important environmental applications of biosurfactants include bioremediation and dispersion of oil spills, enhanced oil recovery and transfer of crude oil. The emphasis of present review shall be with reference to the commercial production, current developments and future perspectives of a variety of approaches of biosurfactant production from the micro-organisms isolated from various oil- contaminated sites and from the by-products of oleo-chemical industry wastes/ by-products viz. used edible oil, industrial residues, acid oil, deodorizer distillate, soap-stock etc.

Biosurfactant from Lysinibacillus chungkukjangi from Rice Bran Oil Sludge and Potential Applications

“…Besides, they may be favored over synthetic surfactants due to their higher biodegradability and environmentally friendly nature [3,4]. Due to all these applications, the research on biosurfactants has been widened to investigate new microbial flora as well as cost effective carbon sources [5].…”

Utilization of Oil Industry Residues for the Production of Rhamnolipids by Pseudomonas indica

“…They also possess properties like surface tension reduction, stabilizing emulsions, promoting foaming, stability at extreme temperature, pH, salinity etc. [1,2]. Many types of microorganisms (bacteria, fungi, actinomycetes) are known for biosurfactant production.…”

“…To overcome this challenge, exploration of various unconventional carbon sources viz. agrochemical waste, vegetable oils, distillery and dairy waste, whey, molasses, waste motor lubricant oil have been considered by researchers [2,3,6].…”

Bioconversion of Crude Glycerole and Molasses Mixture in Biosurfactants of Nocardia vaccinii IMB B-7405

“…Использование промышленных отходов для получения микробных ПАВ позволит решить проблему как накопления вто ричного сырья, так и снижения себестоимости целевого продукта. В последнее время микробные ПАВ, получаемые из возобновляемого сырья, постепенно выходят на миро вой рынок, а возможностью переработки промышленных отходов в эти продукты ми кробного синтеза интересуются ученые всего мира [9,16,[19][20][21][22].…”

“…В работах последних лет, посвященных синтезу микробных ПАВ на смеси ростовых субстратов, особое внимание уделяется исполь зованию промышленных отходов в качестве источников углерода и энергии (мелассы, молочной сыворотки, отработанных растительных масел, технического глицерина и др.) [6,9,10,18,19,21,22].…”