Extraction, identification and valorization of plant waste polysaccharides

International Conference on Food Chemistry & Hydrocolloids

August 11-12, 2016 Toronto, Canada

T Yilmaz

Celal Bayar University, Turkey

Posters & Accepted Abstracts: J Exp Food Chem

Abstract :

Plant processing based waste materials are assumed to be a good source of polysaccharides. It is known that polysaccharides called food gums and food hydrocolloids have various applications depending on their usage purpose in industry. Food wastes coming from plant material are basically composed of cell wall material and it can be classified as cellulose and cell wall matrix filler called pectin, hemicellulose and xycloglucans which are used as thickener, stabilizer, emulsifier texture enhancer, and as a dietary fibre source in food industry. Obtaining usable polysaccharides (PSs) from waste material requires partial hydrolysis and extraction. Especially widely produced and processed foods such as wheat, nuts, corns etc., are good source of PSs. These types of PSs in plant cell wall are extremely heterogeneous having acetyl units and interconnection with cellulose and lignin by hydrogen bonds and covalent bonds, respectively. To obtain PSs from cell wall matrix, it requires breaking bonds by means of alkali treatment, steam explosion treatment, ultrasonication, microwave, and organosoly extraction. Ultrasound is a novel technique and obeys â�?�?Green Chemistryâ�? concept due to helping chemical reduction and energy saving. Extraction procedure mainly covers steps such as pre-treating, extracting, separating by means of ethanol. Identification of PSs requires several analytic, colorimetric, spectroscopic and chromatographic methods. In general view Thermogravimetric Analysis (TGA), Fourier Transform Spectroscopy Attenuated Total Reflectance (FTIR-ATR) and Nuclear Magnetic Resonance (NMR) are useful methods for determining type and composition of extracted PSs.

Biography :

Email: tuncayyilmaz86@gmail.com