Optimization of process parameters of osmotic pressure treatment and heat moisture treatment for rice starch using response surface methodology

Gayary, Mainao Alina; Mahanta, Charu Lata

doi:10.1007/s11694-020-00531-z

Cited by 8 publications

(4 citation statements)

References 44 publications

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“…The increase in SOL also occurred in OPT-modified starch, which was in line with another study on OPT corn starch [18] and on OPT breadfruit starch [12]. OPT can inhibit starch gelatinization and swelling [44]. Furthermore, Pukkahuta et al [45] showed that a decrease in swelling of OPT was caused by a decrease in enthalpy of gelatinization, which increased the amorphous region of the starch granules.…”

Section: Molecular Degree Ordersupporting

confidence: 81%

Study of Changes in Crystallinity and Functional Properties of Modified Sago Starch (Metroxylon sp.) Using Physical and Chemical Treatment

et al. 2022

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Sago starch has weaknesses such as low thermal stability and high syneresis. Modifications were made to improve the characteristics of native sago starch. In this study, sago starch was modified by autoclave-heating treatment (AHT), osmotic-pressure treatment (OPT), octenyl-succinic anhydride modification (OSA), and citric acid cross-linking (CA). This study aimed to examine the changes in chemical composition, crystallinity, and functional properties of the native sago starch after physical and chemical modifications. The results show that physical modification caused greater granule damage than chemical modification. All modification treatments did not alter the type of crystallinity but decreased the relative crystallinity of native starch. New functional groups were formed in chemically modified starches at a wavelength of 1700–1725 cm−1. The degree of order (DO) and degree of double helix (DD) of the modified starches were also not significantly different from the native sample, except for AHT and OPT, respectively. Physical modification decreased the swelling volume, while chemical modification increased its value and is inversely proportional to solubility. AHT and OPT starches have the best freeze–thaw stability among others, indicating that both starches have the potential to be applied in frozen food.

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Section: Molecular Degree Ordersupporting

confidence: 81%

Study of Changes in Crystallinity and Functional Properties of Modified Sago Starch (Metroxylon sp.) Using Physical and Chemical Treatment

et al. 2022

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“…Statistical significance of the models is demonstrated by the probability value ( p ‐value) using the F ‐value 45,46 . Lack of fit p ‐value shows that there is high nonsignificant lack of fit leading to a strong indication that the model fits adequately with the data obtained from experiment 47,48 . The highest lack of fit p ‐value presented in Tables 4 and 5 is 0.43 and 0.21, respectively, for the reduced cubic oleic acid conversion model and reduced quadratic selectivity of jet fuel range hydrocarbon model.…”

Section: Resultsmentioning

confidence: 99%

“…45,46 Lack of fit p-value shows that there is high nonsignificant lack of fit leading to a strong indication that the model fits adequately with the data obtained from experiment. 47,48 The highest lack of fit p-value presented in Tables 4 and 5 is 0.43 and 0.21, respectively, for the reduced cubic oleic acid conversion model and reduced quadratic selectivity of jet fuel range hydrocarbon model. The two highest lack of fit p-values are both greater than 0.05; hence, they reflect good model adequacy.…”

Section: Analysis Of Variance and Regression Models Developmentmentioning

confidence: 97%

Hydroprocessing of oleic acid for production of jet fuel range hydrocarbons over Sn(1)‐Fe(3)‐Cu(13)/SiO₂‐Al₂O₃ catalyst: Process parameters optimization, kinetics, and thermodynamic study

Ayandiran

Boahene

Dalai

et al. 2021

Asia-Pacific J Chem Eng

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Hydroprocessing of vegetable oil to high‐quality jet fuel range hydrocarbons (HRJ) plays a significant role in the development of completely interchangeable substitute for conventional petroleum‐derived jet fuel and has drawn the attention of aviation experts due to its capacity to mitigate greenhouse gas emissions associated with the aviation industry. The limited performance of 1 wt. % Sn promoted Fe(3)‐Cu(13)/SiO2‐Al2O3 catalyst in our previous study has been attributed to the successive consideration of one variable at a time in its evaluation. Maximization of oleic acid conversion and selectivity of jet fuel range hydrocarbons from hydroprocessing of oleic acid over 1 wt. % Sn promoted Fe(3)‐Cu(13)/SiO2‐Al2O3 catalyst with the best combination of the process parameter involved via multivariate approach, and evaluation of kinetic and thermodynamic activation parameters is the focus of this study. Reduced cubic oleic acid conversion model and reduced quadratic jet fuel range hydrocarbons selectivity model of high significance levels, adequate precision, and high correlation coefficient were developed. Reaction temperature of 339.5°C, 1.6 MPa H2 pressure, 6.2 wt.% catalyst concentration, and 8.0 h reaction time were optimum process parameters that can maximize oleic acid conversion and selectivity of jet fuel range hydrocarbons at 98.2% and 82.2%, respectively. This process was found to be endothermic, irreversible, and nonspontaneous with 45.8 KJ/mol activation enthalpy of reaction, 0.25 KJ/mol entropy of reaction, and the reaction's Gibb's free energy of 198.8 KJ/mol at 340°C. The minimum energy required for the reaction to take place was evaluated as 50.7 KJ/mol.

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“…Tuy nhiên, hạn chế của phương pháp là kết quả thường bị ảnh hưởng đồng thời bởi các yếu tố khảo sát, nên điều kiện cuối cùng chưa hẳn đã là điều kiện tối ưu nhất. Vì vậy, để khắc phục vấn đề này, phương pháp bề mặt đáp ứng (RSM -Response surface methodology) với thiết kế mô hình lặp tâm (CCD -Central composite design) là giải pháp tối ưu thay thế hiệu quả, được sử dụng nhiều trong tối ưu quy trình biến tính tinh bột [12].…”

Section: Mở đầUunclassified

Tinh Bột Ngô Biến Tính: Tối Ưu Điều Kiện Biến Tính Bằng Phương Pháp Bề Mặt Đáp Ứng

Oanh,

Lương,

Bảo

et al. 2023

HUIT_OJS

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Bài báo này trình bày kết quả sử dụng phương pháp bề mặt đáp ứng với thiết kế mô hình lặp tâm (RSM-CCD) để tối ưu quy trình oxy hóa tinh bột ngô bằng tác nhân natri hypoclorit. Mô hình được thiết kế 18 thí nghiệm với 6 thí nghiệm tại tâm để xây dựng cho ba yếu tố khảo sát gồm nồng độ clo hoạt động (1% đến 5%), nhiệt độ (30oC đến 70oC) và pH (từ 7 đến 11). Kết hợp với việc khảo sát đơn yếu tố hai thông số là thời gian oxy hóa và hàm lượng tinh bột, điều kiện tối ưu đạt được ở nhiệt độ 51,85oC; nồng độ clo hoạt động 3,74%; pH 9,06; hàm lượng tinh bột 40% và thời gian oxy hóa 90 phút. Kết quả phân tích ANOVA cho hệ số R2 cao (0,9934) và p < 0,0001 chứng tỏ mô hình có ý nghĩa thống kê. Ngoài ra, mô hình được kiểm chứng cho kết quả mức độ oxy hóa cao nhất đạt 0,719% ứng với hàm lượng nhóm carbonyl và carboxyl lần lượt là 0,075% và 0,649%. Phổ FTIR của tinh bột ngô oxy hóa xuất hiện peak hấp thụ ở 1744 cm-1 ứng với dao động của nhóm C=O chứng tỏ phản ứng oxy hóa đã xảy ra.

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Optimization of process parameters of osmotic pressure treatment and heat moisture treatment for rice starch using response surface methodology

Cited by 8 publications

References 44 publications

Study of Changes in Crystallinity and Functional Properties of Modified Sago Starch (Metroxylon sp.) Using Physical and Chemical Treatment

Study of Changes in Crystallinity and Functional Properties of Modified Sago Starch (Metroxylon sp.) Using Physical and Chemical Treatment

Hydroprocessing of oleic acid for production of jet fuel range hydrocarbons over Sn(1)‐Fe(3)‐Cu(13)/SiO₂‐Al₂O₃ catalyst: Process parameters optimization, kinetics, and thermodynamic study

Tinh Bột Ngô Biến Tính: Tối Ưu Điều Kiện Biến Tính Bằng Phương Pháp Bề Mặt Đáp Ứng

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Optimization of process parameters of osmotic pressure treatment and heat moisture treatment for rice starch using response surface methodology

Cited by 8 publications

References 44 publications

Study of Changes in Crystallinity and Functional Properties of Modified Sago Starch (Metroxylon sp.) Using Physical and Chemical Treatment

Study of Changes in Crystallinity and Functional Properties of Modified Sago Starch (Metroxylon sp.) Using Physical and Chemical Treatment

Hydroprocessing of oleic acid for production of jet fuel range hydrocarbons over Sn(1)‐Fe(3)‐Cu(13)/SiO2‐Al2O3 catalyst: Process parameters optimization, kinetics, and thermodynamic study

Tinh Bột Ngô Biến Tính: Tối Ưu Điều Kiện Biến Tính Bằng Phương Pháp Bề Mặt Đáp Ứng

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Hydroprocessing of oleic acid for production of jet fuel range hydrocarbons over Sn(1)‐Fe(3)‐Cu(13)/SiO₂‐Al₂O₃ catalyst: Process parameters optimization, kinetics, and thermodynamic study