Effect of Alkali Treatment on Structure and Properties of High Amylose Corn Starch Film

Qin, Yang; Zhang, Hui; Hou, Hanxue; Dong, Haoran

doi:10.3390/ma12101705

Cited by 54 publications

(41 citation statements)

References 40 publications

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“…The lower total starch content of rice flour compared to rice starch might be due to the presence of some outer layers, namely pericarp, Testa, the nucellus, and the aleurone layer [21]. On the other hand, alkaline treatment involved during the starch extraction helped to separate starch from the binding protein, and other matters improve the purity of starch products [22]. The RD 31 is categorized as hard non-glutinous aromatic rice with high amylose content.…”

Section: Resultsmentioning

confidence: 99%

Effects of Lintnerization, Autoclaving, and Freeze-Thaw Treatments on Resistant Starch Formation and Functional Properties of Pathumthani 80 Rice Starch

Raungrusmee

Anal

2019

Foods

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The objective of this study was to assess the effects of lintnerization, autoclaving, lintnerization followed by autoclaving, and freeze thawing treatments on the production of resistant starch from Pathumthani 80 (RD 31) rice. The produced resistant starch was further evaluated for some important physicochemical properties including pasting properties, swelling behavior, digestibility, water holding capacity, and functional properties including glycemic index and antioxidant properties. The lintnerization treatment and autoclaving significantly (p ˂ 0.05) increased resistant starch content to 64% (w/w) and gave the lowest glycemic index (46.12%). The lintnerization followed by autoclaving treatment significantly increased the solubility and water holding capacity, reduced the swelling power, and disrupted the crystalline structure of the starch granules. The native rice starch with autoclave treatment exhibited the highest swelling power among the samples, while the acid hydrolyzed starch was followed by autoclave treatment showing the lowest swelling power (1 g/g) at 90 °C. Fourier transform infrared analysis revealed the modified structures and bonding of the starch materials with the shifting of C=O stretch. However, the antioxidant properties and pasting properties were observed to decrease with the lintnerization, autoclaving, and freeze-thawing treatment of the native starch. The highly resistant starch content and low glycemic index value of the autoclaved RD 31 starch indicates the potential of the resistant starch’s application for the formulation of functional foods targeting the diabetic population.

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Section: Resultsmentioning

confidence: 99%

Effects of Lintnerization, Autoclaving, and Freeze-Thaw Treatments on Resistant Starch Formation and Functional Properties of Pathumthani 80 Rice Starch

Raungrusmee

Anal

2019

Foods

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“…[ 36 ] Compare to starch gelatinized with alkaline solution, the molecular weight of starch gelatinized with NaOH/glycerol solution was higher, indicating that the damage of NaOH/glycerol solution treatment to starch molecules was lower. [ 37 ]…”

Section: Resultsmentioning

confidence: 99%

Gelatinizing Starch in Sodium Hydroxide/Glycerol Aqueous Solution at Room Temperature

Yang

Sun

et al. 2021

Starch Stärke

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Traditionally, starch gelatinization has been carried out by heating starch granules in the presence of moisture. This study aims to gelatinize starch using a sodium hydroxide (NaOH)/glycerol solution at room temperature. The experimental results reveal that normal corn starch (NCS), waxy corn starch (WCS), and high amylose corn starch (HAS) gelatinize in NaOH/glycerol (0.75, 0.85, and 1.5/1.0 wt.%) solutions for 60 min at 25 °C. The “Maltese cross” of the starch granules (5.0%, w/v) in the NaOH/glycerol aqueous solutions disappear over time. The gelatinization degree (GD%) of NCS increase from 85.58% (10 min) to 92.34% (40 min) and further increase to 100% (60 min). During gelatinization process at room temperature, NaOH plays a major role, and glycerol plays an auxiliary role. Gelatinization of starch in a NaOH/glycerol aqueous solution is an easy and fast method, which can expand applications of starch in food packaging, agricultural, and textile industries.

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“…The strong peak at 58–68 ppm is associated with C 6 [ 57 ], 72.3745 ppm from C 2 C 3 , C 5 of cellulose. Peaks between 68 to 78 ppm attributed to the interaction of C 5 , C 3 and C 2 during reaction between hydrolyzed starch and high amylose starch [ 58 ]. Carbon of lignin and 82.5390 ppm associated with C in alkynes, 104.5888 ppm associated with C 1 of single helix part in starch granules, 116.5982, 131.6730 and 146.0503 ppm are attributed to the presence of aromatic.…”

Section: Resultsmentioning

confidence: 99%

Characterization of composite material from the copolymerized polyphenolic matrix with treated cassava peels starch

Kariuki

Wachira

Erastus

et al. 2020

Heliyon

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Conventional binders in the particleboards formulation involve use of formaldehyde resins. Epidemiologic studies show that formaldehyde is carcinogenic. Efforts to reduce formaldehyde emissions by use of scavengers has not been proven to reduce the emission. Molecular bonding of biobased adhesive molecules with lignocellulose materials provides an alternative way of producing composite material. In this study, maize stalk (MS), rice husks (RH) and sugarcane bagasse (SB) were used as sources of lignocellulose materials for particleboard formulation. SB, MS and RH were collected from their respective sites, sorted and dried. MS and RH were ground. Lignin content determination was done by drying lignocellulose material at 105 °C. Lignocellulose materials were prepared by hydrolysis of dried lignocellulose material with sodium hydroxide. Oxidized starch was prepared by oxidation of cassava peel starch using alkaline hydrogen peroxide. Particleboards were formulated through starch-lignocellulose polymerization at 60 °C compressed with 6.5 Nmm −2 pressure. Characterization of raw materials and formulated particleboards was done using XRD for mineralogical analysis, FTIR and NMR for elucidation of functional groups transformation. The results showed that esterification is the main process of chemical bonding in the particleboard formulation due to reaction between –COOH from starch and and OH- from lignocellulose. Etherification between hydroxyl groups from starch with hydroxyl groups from lignocellulose material. RH combined more through silication process with cassava peels starch than RH and SB showing materials containing high cellulose and hemicellulose content are more compatible. Composite materials formulated were used to produce medium density particleboards that can be used for making furniture and room partitioning.

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Effect of Alkali Treatment on Structure and Properties of High Amylose Corn Starch Film

Cited by 54 publications

References 40 publications

Effects of Lintnerization, Autoclaving, and Freeze-Thaw Treatments on Resistant Starch Formation and Functional Properties of Pathumthani 80 Rice Starch

Effects of Lintnerization, Autoclaving, and Freeze-Thaw Treatments on Resistant Starch Formation and Functional Properties of Pathumthani 80 Rice Starch

Gelatinizing Starch in Sodium Hydroxide/Glycerol Aqueous Solution at Room Temperature

Characterization of composite material from the copolymerized polyphenolic matrix with treated cassava peels starch

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