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

Abstract

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, 1 H and 13 C 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.

Biocompatible Crosslinked Nanofibers of Poly(Vinyl Alcohol)/Carboxymethyl‐Kappa‐Carrageenan Produced by a Green Process

“…[ 11,19 ] Green chemistry methods adhere to a set of principles that reduce or eliminate the use or generation of hazardous substances in the design, manufacture and application of chemicals. [ 16,20,21 ]…”

“…[11,19] Green chemistry methods adhere to a set of principles that reduce or eliminate the use or generation of hazardous substances in the design, manufacture and application of chemicals. [16,20,21] Biomimetic nanomaterials can aid in regeneration of damaged tissues, and can serve as scaffolds or wound dressings. [4,22] Both synthetic and natural polymers have been researched extensively to create nanoscale scaffolds for engineering various tissues.…”

Expanding the Repertoire of Electrospinning: New and Emerging Biopolymers, Techniques, and Applications

“…These include starch, chitin, and cellulose. [10,13,[31][32][33] However, many others with potentially revolutionary properties remain underutilized.…”

“…[11,12] Polysaccharides have, on average, three hydroxyls in each repeating unit, providing a large number of sites for chemical modifications. [13,14] Because of these characteristics, they have been extensively used in biomaterial formation to achieve biodegradable products from renewable sources, with important physicochemical properties. [15][16][17] Also, due to their solubility in different solvents and different structural behavior in solution, biopolymers are extensively used for scaffolds and fiber formation by electrospinning, and have shown promising biological properties, such as cytocompatibility for different cell phenotypes, enhanced blood coagulation for applications as wound dressings, enhanced antibacterial activity, and absorption capacity for dyes and other molecules.…”

Formulation of cellulose using groundnut husk as an environment-friendly fluid loss retarder additive and rheological modifier comparable to PAC for WBM

“…If this occurs, the mud solids stick together tenaciously and the mud system may not remain inhibitive to the drilled formation. Also, most of the oil-wet additives are liable to invade into formations along the fractures and may inevitably have negative impacts on the behaviors of reservoir stress sensitivity (Cline et al 1989;Marques et al 2019;Elochukwu and Sia 2019). Hence, it is proposed to use cost-effective, high-performance water-based drilling fluid additives.…”