Pectins from food waste: Characterization and functional properties of a pectin extracted from broccoli stalk

Abstract

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Strategies to Increase the Biological and Biotechnological Value of Polysaccharides from Agricultural Waste for Application in Healthy Nutrition

“…Pectins are traditionally obtained from agricultural by-products, such as citrus peels and apple pomace [ 33 , 34 ]. The increasing global demand for this heteropolysaccharide due to the numerous health benefits attributed to it [ 35 ] means that alternative sources of pectin are being sought in other vegetables and by-products, such as eggplant [ 36 ], tomato peel [ 37 , 38 ], broccoli stem [ 39 ] and pomegranate peel [ 40 ], among others.…”

Revalorization of sunflower stalk pith as feedstock for the coproduction of pectin and glucose using a two-step dilute acid pretreatment process

“…Herein, pectin is a structural hetero-polysaccharide contained in the primary cell walls of terrestrial plants, mostly vegetables and fruits [ 9 ]. Pectin is well known as stabilizers in food industries due to its ability to gel and give viscosity, and the use of pectin in food formulations or pharmaceuticals industry has beneficial effects on human health such as stimulating the immune response, reduces the cholesterol absorption in the blood and lower cancer risk [ 10 , 11 ]. These benefits lead to a high price that exceeded $21/kg, justifying the search for new raw pectin-extraction materials; therefore, the extraction of high value-added pectin products from SSP can potentially increase the commercial value of sunflower processing industry [ 10 ].…”

Revalorization of Sunflower Stalk Pitch As Feedstock for the Coproduction of Pectin and Glucose Using a Two-Step Dilute Acid Pretreatment Process

“…Sun ower stalk pith (SSP), as the primary byproducts of sun ower processing industry, are composed of a high content of pectin (15-20%) and cellulose (35-45%) and a low content of hemicellulose (5-10%) and lignin (3-5%) [5,6]. Pectin is a structural hetero-polysaccharide contained in the primary cell walls of terrestrial plants, and it has been widely used in the food and pharmaceutical industries as a commercial hydrocolloid [7,8]. The extraction of high value-added pectin products from SSP can potentially increase the commercial value of sun ower processing industry [7].…”

“…Pectin is a structural hetero-polysaccharide contained in the primary cell walls of terrestrial plants, and it has been widely used in the food and pharmaceutical industries as a commercial hydrocolloid [7,8]. The extraction of high value-added pectin products from SSP can potentially increase the commercial value of sun ower processing industry [7]. In general, most commercial pectin is recovered using acidic hot water with mineral acids, such as HCl and H 2 SO 4 , at a mild temperature range of 60-90 o C and a low pH [9,10].…”