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Liu L, Jiang X, Chen Y, Yaqoob S, Xiu L, Liu H, Zheng M, Cai D, Liu J. Germination-induced modifications of starch structure, flour-processing characteristics, and in vitro digestive properties in maize. Food Chem X 2024; 22:101430. [PMID: 38736981 PMCID: PMC11087989 DOI: 10.1016/j.fochx.2024.101430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2024] [Revised: 04/24/2024] [Accepted: 04/28/2024] [Indexed: 05/14/2024] Open
Abstract
Current research on maize germination suffers from long sampling intervals, and the relationship between the starch structure and the processing properties of flour in maize is still unclear. This study observed the effect of germination on the structure and composition of maize starch and the processing properties of maize flour over a 72 h period using a short interval sampling method. At 36 h, the short-range ordered structure, crystallinity, and enthalpy of starch reached the highest values of 1.02, 34.30%, and 9.90 J/g, respectively. At 72 h, the ratios of rapidly-digested starch (RDS) and slowly-digested starch (SDS) enhanced to 29.37% and 28.97%; the RS content reduced to 35.37%; and the flow properties of the starch were improved. This study enhances the understanding of the effects of germination on the processing properties of maize starch and flour, determines the appropriate application, and recommends the use of germination in the food industry.
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Affiliation(s)
- Lipeng Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Xin Jiang
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Yelinxin Chen
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Sanabil Yaqoob
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Lin Xiu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Huimin Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Mingzhu Zheng
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Dan Cai
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
| | - Jingsheng Liu
- College of Food Science and Engineering, Jilin Agricultural University, Changchun, Jilin 130118, China
- National Engineering Research Center for Wheat and Corn Deep Processing, Changchun, Jilin 130118, China
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Xiao Y, Liu Z, Gu H, Yang L, Liu T, Tian H. Preparation and characterization of a modified Canna starch as a wall material for the encapsulation of methyleugenol improves its antifungal activity against Fusarium trichothecioides. Food Chem 2024; 433:137324. [PMID: 37683464 DOI: 10.1016/j.foodchem.2023.137324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2023] [Revised: 08/16/2023] [Accepted: 08/28/2023] [Indexed: 09/10/2023]
Abstract
In this study, α-amylase (α-A) and 2-octenylsuccinic anhydride (OSA)-modified Canna starch (Cs) were prepared and characterized as wall materials and encapsulated with methyleugenol (α-A-OSA-Cs-methyleugenol); their in vitro antifungal activity against Fusarium trichothecioides (F. trichothecioides) was also investigated. The encapsulation efficiency under optimal encapsulation conditions was 83.98%. The results of particle size, polydispersity index (PDI), zeta potential, electron scanning microscopy and Fourier transform infrared spectroscopy showed that the modified Cs had superior physicochemical properties; it was also demonstrated that methyleugenol successfully entered the pores of Cs. The in vitro release study showed that α-A-OSA-Cs could effectively reduce their volatility under different temperature environments. α-A-OSA-Cs have excellent performance as slow-release wall materials, and after encapsulation with methyleugenol, the inhibition ability of F. trichothecioides mycelium growth was dose-dependent and improved, extending the shelf life of potatoes, which has good commercial value in the field of slow-release preservatives.
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Affiliation(s)
- Yao Xiao
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China
| | - Zaizhi Liu
- College of Life Sciences, Jiangxi Normal University, Nanchang 330022, China
| | - Huiyan Gu
- School of Forestry, Northeast Forestry University, Harbin 150040, China
| | - Lei Yang
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin 150040, China; Key Laboratory of Forest Plant Ecology, Ministry of Education, Northeast Forestry University, Harbin 150040, China.
| | - Tingting Liu
- College of Pharmacy, Qiqihar Medical University, Qiqihar 161006, China.
| | - Hao Tian
- Agro-products Processing Research Institute, Yunnan Academy of Agricultural Sciences, Kunming 650223, China
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3
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Tang J, Tao H, Tan C, Yuan F, Guo L, Cui B, Gao S, Wu Z, Zou F, Wu Z, Liu P, Lu L. Adsorption properties of corn starch modified by malt amylases and crosslinking agents: A comparison between sodium trimetaphosphate and organic acids. Int J Biol Macromol 2023; 253:127140. [PMID: 37778579 DOI: 10.1016/j.ijbiomac.2023.127140] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2023] [Revised: 09/24/2023] [Accepted: 09/27/2023] [Indexed: 10/03/2023]
Abstract
In order to investigate the effects of different crosslinking agents on physicochemical properties and adsorption properties of porous starch. Native corn starch was hydrolyzed by maltase and crosslinked with different crosslinking agents. Sodium trimetaphosphate crosslinked porous starch (STMP-MPS), malic acid cross-linked porous starch (MA-MPS) and citric acid cross-linked porous starch (CA-MPS) were prepared. After crosslinking, MA-MPS and CA-MPS showed a new CO stretching absorption peak at 1738 cm-1, and the crosslinking degree was much higher than that of STMP-MPS. The surface area of MA-MPS was 36 % higher than that of STMP-MPS. Compared with the average pore size of 12.43 nm of STMP-MPS, CA-MPS (14.02 nm) and MA-MPS (14.79 nm) were increased more significantly. The degradation temperature of MA-MPS and CA-MPS was increased by the introduction of ester bond, which indicates that the organic acid cross-linking strengthens the starch granules and hence more energy is required for disruption. Compared with STMP-MPS, the water absorption of MA-MPS and CA-MPS increased by 64 % and 32 %, respectively. Furthermore, the adsorption capacity of MA-MPS to essential oil was the strongest, about 4 times that of STMP-MPS. Overall, it is feasible to modify porous starch by crosslinking reaction to improve its heat resistance and adsorption properties.
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Affiliation(s)
- Jun Tang
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China; No.3501, Daxue Rd., Changqing District, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province 250353, China
| | - Haiteng Tao
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China; No.3501, Daxue Rd., Changqing District, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province 250353, China
| | - Congping Tan
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China; No.3501, Daxue Rd., Changqing District, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province 250353, China
| | - Fang Yuan
- School of Chemistry and Chemical Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China; No.3501, Daxue Rd., Changqing District, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province 250353, China
| | - Li Guo
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China; No.3501, Daxue Rd., Changqing District, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province 250353, China.
| | - Bo Cui
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China; No.3501, Daxue Rd., Changqing District, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province 250353, China.
| | - Shijun Gao
- Shandong Shouguang Juneng Golden Corn Development Co., Shouguang, China; West of Xingyuan Road, North of Anshun Street, Gucheng District, Shouguang City, Shandong Province, Shandong Shouguang Juneng Golden Corn Development Co., Shouguang, China; West of Xingyuan Road, North of Anshun Street, Gucheng District, Shouguang City, Shandong Province, China.
| | - Zehua Wu
- Shandong Shouguang Juneng Golden Corn Development Co., Shouguang, China; West of Xingyuan Road, North of Anshun Street, Gucheng District, Shouguang City, Shandong Province, Shandong Shouguang Juneng Golden Corn Development Co., Shouguang, China; West of Xingyuan Road, North of Anshun Street, Gucheng District, Shouguang City, Shandong Province, China
| | - Feixue Zou
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China; No.3501, Daxue Rd., Changqing District, Qilu University of Technology (Shandong Academy of Sciences), Jinan, Shandong Province 250353, China
| | - Zhengzong Wu
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Pengfei Liu
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
| | - Lu Lu
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China
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Chen L, Huang W, Hao M, Yang F, Shen H, Yu S, Wang L. Rapid and ultrasensitive activity detection of α-amylase based on γ-cyclodextrin crosslinked metal-organic framework nanozyme. Int J Biol Macromol 2023; 242:124881. [PMID: 37201881 DOI: 10.1016/j.ijbiomac.2023.124881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 05/20/2023]
Abstract
α-Amylase plays a significant part in fermentation and the food industry, as this enzyme effectively regulates the content of different sugars in brewing systems and affects the yield and quality of alcoholic beverages. Nevertheless, current strategies suffer from unsatisfactory sensitivity and are time-consuming or are indirect methods which demand the assistance of tool enzymes or inhibitors. Therefore, they are unsuitable for the low bioactivity and non-invasive detection of α-amylase in fermentation samples. Rapid, sensitive, facile, and direct detection method of this protein remains challenging in actual applications. In this work, a nanozyme-based α-amylase assay was constructed. The colorimetric assay used the interaction between α-amylase and γ-cyclodextrin (γ-CD) which crosslinks MOF-919-NH2. The determination mechanism bases on the hydrolysis of γ-CD by α-amylase, resulting in increased peroxidase-like bioactivity of the released MOF nanozyme. The detection limit was 0.12 U L-1 with a wide linear range (0-200 U L-1) and excellent selectivity. Additionally, the proposed detection method was successfully utilized in distilled yeasts to verify analytical capability in fermentation samples. The exploration of this nanozyme-based assay not only provides a convenient and effective strategy for enzyme activity determination in food industry, but also has promotion significance in clinical diagnosis and pharmaceutical production.
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Affiliation(s)
- Liangqiang Chen
- Kweichow Moutai Co., Ltd, Renhuai, Guizhou 564501, China; Baijiu Manufacturing Innovation Institute of Guizhou Province, Renhuai, Guizhou 564501, China; Kweichow Moutai Group, Renhuai, Guizhou 564501, China
| | - Wanqiu Huang
- Kweichow Moutai Co., Ltd, Renhuai, Guizhou 564501, China; Baijiu Manufacturing Innovation Institute of Guizhou Province, Renhuai, Guizhou 564501, China; Kweichow Moutai Group, Renhuai, Guizhou 564501, China
| | - Mengdi Hao
- Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Fan Yang
- Kweichow Moutai Co., Ltd, Renhuai, Guizhou 564501, China; Baijiu Manufacturing Innovation Institute of Guizhou Province, Renhuai, Guizhou 564501, China; Kweichow Moutai Group, Renhuai, Guizhou 564501, China.
| | - Hao Shen
- Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China.
| | - Shaoning Yu
- Institute of Mass Spectrometry, School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang 315211, China
| | - Li Wang
- Kweichow Moutai Co., Ltd, Renhuai, Guizhou 564501, China; Baijiu Manufacturing Innovation Institute of Guizhou Province, Renhuai, Guizhou 564501, China; Kweichow Moutai Group, Renhuai, Guizhou 564501, China.
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Zinck SS, Christensen SJ, Sørensen OB, Svensson B, Meyer AS. Importance of Inactivation Methodology in Enzymatic Processing of Raw Potato Starch: NaOCl as Efficient α-Amylase Inactivation Agent. Molecules 2023; 28:molecules28072947. [PMID: 37049710 PMCID: PMC10095898 DOI: 10.3390/molecules28072947] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 03/20/2023] [Accepted: 03/22/2023] [Indexed: 03/29/2023] Open
Abstract
Efficient inactivation of microbial α-amylases (EC 3.2.1.1) can be a challenge in starch systems as the presence of starch has been shown to enhance the stability of the enzymes. In this study, commonly used inactivation methods, including multistep washing and pH adjustment, were assessed for their efficiency in inactivating different α-amylases in presence of raw potato starch. Furthermore, an effective approach for irreversible α-amylase inactivation using sodium hypochlorite (NaOCl) is demonstrated. Regarding inactivation by extreme pH, the activity of five different α-amylases was either eliminated or significantly reduced at pH 1.5 and 12. However, treatment at extreme pH for 5 min, followed by incubation at pH 6.5, resulted in hydrolysis yields of 42–816% relative to controls that had not been subjected to extreme pH. “Inactivation” by multistep washing with water, ethanol, and acetone followed by gelatinization as preparation for analysis gave significant starch hydrolysis compared to samples inactivated with NaOCl before the wash. This indicates that the further starch degradation observed in samples subjected to washing only took place during the subsequent gelatinization. The current study demonstrates the importance of inactivation methodology in α-amylase-mediated raw starch depolymerization and provides a method for efficient α-amylase inactivation in starch systems.
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Zhang X, Mi T, Gao W, Wu Z, Yuan C, Cui B, Dai Y, Liu P. Ultrasonication effects on physicochemical properties of starch-lipid complex. Food Chem 2022; 388:133054. [PMID: 35483292 DOI: 10.1016/j.foodchem.2022.133054] [Citation(s) in RCA: 22] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2021] [Revised: 04/07/2022] [Accepted: 04/21/2022] [Indexed: 11/15/2022]
Abstract
The starch-lipid complex between the pea starch (PSt) and glycerol monolaurate (GM) was prepared using ultrasound with different amplitudes, durations and application sequences. Fourier-transform infrared and nuclear magnetic resonance spectra showed the formation of amylose-lipid complex between PSt and GM in the ultrasonic field. Stronger diffraction intensities were observed in samples treated by ultrasonication, whereas the thermogravimetric analysis indicated that the thermal stability of starch was improved by the formation of the V-type inclusion complexes. An ultrasound pre-treatment prior to the addition of a guest molecule (UC) was more favorable to induce the formation of an amylose-lipid complexes than ultrasound treatment after PSt was incorporated with GM (CU). The UC-treated samples showed stronger diffraction intensities, higher melting enthalpy values and enzyme-resistant than that of CU-treated PSt-GM complexes.
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Affiliation(s)
- Xiaolei Zhang
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China; School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China; College of Food Science and Engineering, Shandong Agricultural University, Tai'an, Shandong 271018, China
| | - Tongtong Mi
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China; School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China; Faculty of Agricultural and Veterinary Sciences, Liaocheng Vocational and Technical College, Liaocheng, Shandong 252000, China
| | - Wei Gao
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China; School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China
| | - Zhengzong Wu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China; School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China
| | - Chao Yuan
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China; School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China
| | - Bo Cui
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China; School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China
| | - Yangyong Dai
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China; College of Food Science and Engineering, Shandong Agricultural University, Tai'an, Shandong 271018, China.
| | - Pengfei Liu
- State Key Laboratory of Biobased Material and Green Papermaking, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China; School of Food Science and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, Shandong 250353, China.
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The Characterization and Functional Properties of Euglena gracilis Paramylon Treated with Different Methods. Int J Anal Chem 2022; 2022:7811014. [PMID: 35966503 PMCID: PMC9371794 DOI: 10.1155/2022/7811014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Accepted: 07/09/2022] [Indexed: 11/17/2022] Open
Abstract
Euglena gracilis paramylon (EGP) is a polymeric polysaccharide composed of linear β-1,3 glucan. The water insolubility of EGP severely limits its application. This work aimed to improve the functional characteristics of EGP by hydrogen peroxide (H2O2) degradation and carboxymethylated modification. The results showed that the crystallinity of EGP degraded by H2O2 and carboxymethylated modification decreased by 14% and 46%, and the thermal degradation temperature was significantly descending in a crystallinity-dependent manner. In addition, the results showed that H2O2 degradation and carboxymethylation significantly improved the adsorption capacity of EGP for oil, dyes, and metal ions, and their water solubility increased by 9% and 85%. This result will provide a valuable theoretical basis for the development and utilization of EGP.
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Gao L, Zhao X, Liu M, Zhao X. Characterization and Antibacterial Activities of Carboxymethylated Paramylon from Euglena gracilis. Polymers (Basel) 2022; 14:polym14153022. [PMID: 35893986 PMCID: PMC9332863 DOI: 10.3390/polym14153022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 07/20/2022] [Accepted: 07/21/2022] [Indexed: 11/29/2022] Open
Abstract
Paramylon from Euglena gracilis (EGP) is a polymeric polysaccharide composed of linear β-1,3 glucan. EGP has been proved to have antibacterial activity, but its effect is weak due to its water insolubility and high crystallinity. In order to change this deficiency, this experiment carried out carboxymethylated modification of EGP. Three carboxymethylated derivatives, C-EGP1, C-EGP2, and C-EGP3, with a degree of substitution (DS) of 0.14, 0.55, and 0.78, respectively, were synthesized by varying reaction conditions, such as the mass of chloroacetic acid and temperature. Fourier transform infrared spectroscopy (FTIR), gel permeation chromatography (GPC), and nuclear magnetic resonance (NMR) analysis confirmed the success of the carboxymethylated modification. The Congo red (CR) experiment, scanning electron microscopy (SEM), X-ray diffraction (XRD), and thermogravimetry (TG) were used to study the conformation, surface morphology, crystalline nature, and thermostability of the carboxymethylated EGP. The results showed that carboxymethylation did not change the triple helix structure of the EGP, but that the fundamental particles’ surface morphology was destroyed, and the crystallization area and thermal stability decreased obviously. In addition, the water solubility test and antibacterial experiment showed that the water solubility and antibacterial activity of the EGP after carboxymethylation were obviously improved, and that the water solubility of C-EGP1, C-EGP2, and C-EGP3 increased by 53.31%, 75.52%, and 80.96% respectively. The antibacterial test indicated that C-EGP3 had the best effect on Escherichia coli (E. coli) and Staphylococcus aureus (S. aureus), with minimum inhibitory concentration (MIC) values of 12.50 mg/mL and 6.25 mg/mL. The diameters of the inhibition zone of C-EGP3 on E. coli and S. aureus were 11.24 ± 0.15 mm and 12.05 ± 0.09 mm, and the antibacterial rate increased by 41.33% and 43.67%.
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Gui Y, Wei X, Yang N, Guo L, Cui B, Zou F, Lu L, Liu P, Fang Y. Comparison of structural and functional properties of maize starch produced with commercial or endogenous enzymes. Int J Biol Macromol 2022; 209:2213-2225. [PMID: 35504411 DOI: 10.1016/j.ijbiomac.2022.04.202] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2021] [Revised: 03/18/2022] [Accepted: 04/27/2022] [Indexed: 11/05/2022]
Abstract
To explore an effective and economic method to prepare higher contents of resistant starch (RS), different enzyme treatments including single pullulanase (PUL), commercial α-amylase (AA) or/and β-amylase (BA) with PUL, and malt endogenous amylase (MA) with PUL were used and the structural, physicochemical properties and digestibility of all modified starches (MS) were compared. All the enzyme-treated starches displayed a mixture of B and V-type diffraction patterns. The MA/PUL-MS showed higher V-type diffraction peak intensity as compared to other modified starches. Compared to the combination of commercial enzyme treatment, the combination of malt enzyme treatment led to higher apparent amylose contents (45.56%), RS content (53.93%) and thermal stability (302 °C), whereas it possessed lower solubility indices and predicted glycaemic index. The apparent viscosity and shear resistance of MA/PUL-MS were lower than that of AA/PUL-MS, whereas that of MA/PUL-MS was higher than that of BA/PUL-MS and BA/AA/PUL-MS. These findings would provide a theoretical and applicative basis to produce foods with lower GI in industrial production.
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Affiliation(s)
- Yifan Gui
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Xinyang Wei
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Na Yang
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Li Guo
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China.
| | - Bo Cui
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China.
| | - Feixue Zou
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Lu Lu
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Pengfei Liu
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
| | - Yishan Fang
- State Key Laboratory of Biobased Material and Green Papermaking, School of Food Sciences and Engineering, Qilu University of Technology, Shandong Academy of Sciences, Jinan, China
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Zhong Y, Xu J, Liu X, Ding L, Svensson B, Herburger K, Guo K, Pang C, Blennow A. Recent advances in enzyme biotechnology on modifying gelatinized and granular starch. Trends Food Sci Technol 2022. [DOI: 10.1016/j.tifs.2022.03.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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