Review of direct chemical and biochemical transformations of starch

Khlestkin, Vadim K.; Peltek, Sergey E.; Kolchanov, Nikolay А.

doi:10.1016/j.carbpol.2017.10.035

Cited by 64 publications

(46 citation statements)

References 219 publications

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“…Moreover, the chemical modification method is marketable as it potentially increases the porosity of the modified starch. The approach to utilize porous starch as a carrier or transporter for other molecules to transfer to the target position is widely applied in many applications nowadays such as in food, agriculture, pharmacy, cosmetics, and other industries …”

Section: Introductionmentioning

confidence: 99%

Surface Modification of Tapioca Starch by Using the Chemical and Enzymatic Method

Prompiputtanapon

Sorndech

2020

Starch Stärke

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Surface modifications of starch provide benefits in various applications for food and medical products as a carrier material due to their high adsorption ability. The effect of enzymatic and acid modification of starch surfaces on the morphology and characteristics of granular tapioca starch is investigated. Tapioca starch slurry is prepared and treated with α‐amylase (αA), amyloglucosidase (AM), the combination of these two enzymes (αA+AM), and 2.2 m HCl (AS) at various hydrolysis times. Starch granular surface of αA, AM, and αA+AM‐treated samples show voids and cavities. The AS sample induced more surface roughness in the granules as compared to the enzyme‐treated samples and some parts of the granules are smaller or fused together into a larger size. The highest relative crystallinity is obtained from the AS samples (48.43%). All modified samples exhibit an increase in their specific surface area, volume of pores, and average diameter. The AM sample shows the highest specific surface area (1.66 m2 g−1) which corresponds to the largest pore volume (0.38 cm3 g−1) while the AS sample shows the highest average diameter (21.87 nm). Overall, a modified granular starch surface with various characteristics can be provided by using hydrolysis enzymes and acid.

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Section: Introductionmentioning

confidence: 99%

Surface Modification of Tapioca Starch by Using the Chemical and Enzymatic Method

Prompiputtanapon

Sorndech

2020

Starch Stärke

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“…When the phosphorus concentration in water exceeds 0.02 mg/L, phosphorus becomes a polluting element and causes eutrophication of water bodies [65][66][67]. Starch is a commonly used and cheap material, widely used in many chemical and material industries, but it produces high concentration of organic wastewater, which will affect the environment [68][69][70]. Therefore, phosphate and starch removal from wastewater has become the focus of many studies.…”

Section: Removal Of Phosphate and Starch In Wastewatermentioning

confidence: 99%

Magnetic Separation of Impurities from Hydrometallurgy Solutions and Waste Water Using Magnetic Iron Ore Seeding

Han¹,

Sun²,

Sun³

et al. 2021

Iron Ores

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The removal of iron ion from leaching solution is critical for the recovery of value metals, with the method of choice commonly being crystallization (precipitation). This paper summarized the new improvements in iron removal by precipitation methods in recent years and proposed a novel process, magnetic seeding and separation. The new process can promote iron precipitate aggregation and growth on the surface of the magnetic iron ore seeds. A core-shell structure was formed of iron precipitate and magnetic iron ore seeds, which can be magnetized and coalesced in magnetic field, accelerating the solid-liquid separation. The efficient magnetic flocculation and separation offset the poor settleability and filterability of the residues, contributing to the development of the hydrometallurgy process. Moreover, magnetic seeding and separation was also used for the removal of organic and inorganic contaminants from wastewater, significantly improving the purification efficiency. Therefore, iron ore not only played an important role in mining and steel manufacture, but also can be used to solve some problems in crossing fields.

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“…Starch is an important and sustainable natural source, from which it is possible to obtain a variety of products of industrial interest, following either chemical or biochemical approaches [ 108 ]. Among the wide range of possible transformations, enzymatic degradation of starch by bacteria leads to the formation of cyclodextrins (CDs), which are cyclic oligosaccharides containing 6 (α-CD), 7 (β-CD), or 8 (γ-CD) glucose units.…”

Section: Cellulose- and Starch-based Nanostructured Materialsmentioning

confidence: 99%

Environmentally Sustainable and Ecosafe Polysaccharide-Based Materials for Water Nano-Treatment: An Eco-Design Study

et al. 2018

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Nanoremediation, which is the use of nanoparticles and nanomaterials for environmental remediation, is widely explored and proposed for preservation of ecosystems that suffer from the increase in human population, pollution, and urbanization. We herein report a critical analysis of nanotechnologies for water remediation by assessing their sustainability in terms of efficient removal of pollutants, appropriate methods for monitoring their effectiveness, and protocols for the evaluation of any potential environmental risks. Our purpose is to furnish fruitful guidelines for sustainable water management, able to promote nanoremediation also at European level. In this context, we describe new nanostructured polysaccharide-based materials obtained from renewable resources as alternative efficient and ecosafe solutions for water nano-treatment. We also provide eco-design indications to improve the sustainability of the production of these materials, based on life-cycle assessment methodology.

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Review of direct chemical and biochemical transformations of starch

Cited by 64 publications

References 219 publications

Surface Modification of Tapioca Starch by Using the Chemical and Enzymatic Method

Surface Modification of Tapioca Starch by Using the Chemical and Enzymatic Method

Magnetic Separation of Impurities from Hydrometallurgy Solutions and Waste Water Using Magnetic Iron Ore Seeding

Environmentally Sustainable and Ecosafe Polysaccharide-Based Materials for Water Nano-Treatment: An Eco-Design Study

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