Turning Industrial Waste into a Valuable Bioproduct:Starch from Mango Kernel Derivative to Oil Industry Mango Starch Derivative in Oil Industry

• 作者: Caroline Suzy do Nascimento Garcia Edson Noriyuki Ito Liszt Yeltsin Coutinho Madruga Marcos Ant?nio Villetti Men de SáMoreira de Souza Filho Nívia do Nascimento Marques Rosangela de Carvalho Balaban
• 来源期刊: 可再生材料杂志(英文)
• 学科: 经济
• 关键词: MANGO STARCH oil drilling fluid TRANSESTERIFICATION vinyl LAURATE
• 年，卷（期）: kzsclzzyw,（2）
• 页码范围: 139-152
• 页数: 14页
• 分类号: F42

摘要

After industrial mango processing,tons of residues such as peels and kernels are discarded as waste.Nevertheless,almost 60% of the mango kernel is due to starch on a dry weight basis.Herein,starch from mango(Manguifera Indica L.)kernel was applied to obtain a starch fatty ester with vinyl laurate,in DMSO,under basic catalysis.FTIR,1H and 13C NMR confirmed that a starch ester with a degree of modification of 2.6 was produced.TGA showed that the modified starch has higher thermal stability than its precursors and higher than a vinyl laurate/starch physical blend.SEM data showed that granular shape and smooth surface on mango starch changed after chemical modification to a continuous and shapeless morphology.This industrial reject derivative behaved as an efficient alternative environmentally friendly fluid loss controller in oil drilling fluids,even in conditions of high temperatures and high pressures(HTHP)drilling.