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Hao Z, Li Z, Zhou Q, Ma Z, Lv J, Wang Y, Hu A, Cheng J, Yu Z, Xie Z, Du Y. Investigation of the effect of ultrasonication on starch-fatty acid complexes and the stabilization mechanism. Food Res Int 2024; 191:114711. [PMID: 39059957 DOI: 10.1016/j.foodres.2024.114711] [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: 04/06/2024] [Revised: 05/31/2024] [Accepted: 06/26/2024] [Indexed: 07/28/2024]
Abstract
The complexation of physically modified starch with fatty acids is favorable for the production of resistant starch. However, there is a lack of information on the effect of ultrasonication (UC) on the structure and properties of starch complexes and the molecular mechanism of the stabilization. Here, the multi-scale structure and in vitro digestive properties of starch-fatty acid complexes before and after UC were investigated, and the stabilization mechanisms of starch and fatty acids were explored. The results showed that the physicochemical properties and multi-scale structure of the starch-fatty acid complexes significantly changed with the type of fatty acids. The solubility and swelling power of the starch-fatty acid complexes were significantly decreased after UC (P < 0.05), which facilitated the binding of starch with fatty acids. The XRD results revealed that after the addition of fatty acids, the starch-fatty acid complexes showed typical V-shaped complexes. In addition, the starch-fatty acid complexes showed a significant increase in complexing index, improved short-range ordering and enhanced thermal stability. However, the differences in the structure and properties of the fatty acids themselves resulted in no significant improvement in the multi-scale structure of maize starch-palmitic acid by UC. In terms of digestibility, especially the complexes after UC were more compact in structure, which increased the difficulty of enzymatic digestion and thus slowed down the digestion process. DFT calculations and combined with FT-IR analysis showed that non-covalent interactions such as hydrogen bonding and hydrophobic interactions were the main driving force for the formation of the complexes, with binding energies (lauric acid, myristic acid and palmitic acid) of -30.50, -22.14 and -14.10 kcal/mol, respectively. Molecular dynamics simulations further confirmed the molecular mechanism of inclusion complex formation and stabilization. This study is important for the regulation of starchy foods by controlling processing conditions, and provides important information on the role of fatty acids in the regulation of starch complexes and the binding mechanism.
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Affiliation(s)
- Zongwei Hao
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, China
| | - Zhaofeng Li
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China
| | - Qianxin Zhou
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China
| | - Zhenni Ma
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China
| | - Jiali Lv
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China
| | - Yanrui Wang
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China
| | - Ailong Hu
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China
| | - Juntao Cheng
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China
| | - Zhenyu Yu
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China.
| | - Zhongwen Xie
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China.
| | - Yiqun Du
- State Key Laboratory of Tea Plant Biology and Utilization, School of Tea and Food Science & Technology, Anhui Agricultural University, Hefei 230036, China; Joint Research Center for Food Nutrition and Health of IHM, Anhui Agricultural University, Hefei 230036, China.
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Yang J, Dong M, Fang F, Li Y, Li C. Effects of varied preparation processes on polyphenol-rice starch complexes, in vitro starch digestion, and polyphenols release. Food Chem 2024; 450:139330. [PMID: 38653054 DOI: 10.1016/j.foodchem.2024.139330] [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: 05/17/2023] [Revised: 04/07/2024] [Accepted: 04/09/2024] [Indexed: 04/25/2024]
Abstract
This study synthesized composite samples incorporating four representative polyphenolic structures, gallic acid (GA), quercetin (QC), resveratrol (RES), and magnolol (MN), with rice starch using various preparation processes, including the addition of polyphenols and alteration of temperature and pH, via co-gelatinization. Subsequently, the complexation rates, starch digestion properties, and polyphenol release during in vitro digestion were examined. The results indicated that both the preparation process and structural variations of polyphenols affected starch digestion and polyphenol release by modulating the complexation. All polyphenols displayed inhibitory effects on rice starch digestion, with GA being the most efficient polyphenol. Additionally, rice starch exhibited a protective effect against RES during in vitro digestion, as rice starch-coated RES reduced the damage from stomach acids. Overall, these findings may help optimize the processing conditions for the synthesis of polyphenol-rice starch-based food products.
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Affiliation(s)
- Jia Yang
- School of Food Science and Bioengineering, Changsha University of Science & Technology, 960, 2nd Section, Wanjiali South Road, Changsha 410114, Hunan, PR China
| | - Mengji Dong
- School of Food Science and Bioengineering, Changsha University of Science & Technology, 960, 2nd Section, Wanjiali South Road, Changsha 410114, Hunan, PR China
| | - Fang Fang
- School of Food Science and Bioengineering, Changsha University of Science & Technology, 960, 2nd Section, Wanjiali South Road, Changsha 410114, Hunan, PR China
| | - Yan Li
- School of Food Science and Bioengineering, Changsha University of Science & Technology, 960, 2nd Section, Wanjiali South Road, Changsha 410114, Hunan, PR China
| | - Chiling Li
- School of Food Science and Bioengineering, Changsha University of Science & Technology, 960, 2nd Section, Wanjiali South Road, Changsha 410114, Hunan, PR China.
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Venkatachalam K, Charoenphun N, Noonim P, Pechwang J, Lekjing S. Influence of pomelo pericarp essential oil on the structural characteristics of gelatin-arrowroot tuber flour-based edible films. RSC Adv 2024; 14:27274-27287. [PMID: 39193303 PMCID: PMC11348763 DOI: 10.1039/d4ra03059a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2024] [Accepted: 08/20/2024] [Indexed: 08/29/2024] Open
Abstract
The present study examined the comprehensive effects of incorporating pomelo pericarp essential oil (PEO) at varying concentrations (0.5, 1.0, 1.5, and 2.0%) into gelatin-arrowroot tuber flour (GEL-ATF) based edible films and evaluated the influence on various structural properties. ATF was prepared from Maranta arundinacea L. tubers using a carefully controlled method to ensure its quality and suitability as a polysaccharide base in film formulations. The results indicated that adding PEO to the GEL-ATF films decreased L, a, and b color values and increased opacity values, especially at higher PEO concentrations. Furthermore, the appearance of both GEL-ATF and GEL-ATF-PEO films exhibited similar characteristics. Incorporating PEO significantly reduced moisture content and water vapor permeability (WVP), indicating enhanced barrier properties against moisture. Additionally, an increase in PEO concentration resulted in decreased film solubility. A decrease in tensile strength (TS) but an increase in elongation at break (EAB) was observed in the GEL-ATF films with higher PEO concentrations (>1% PEO). Slight variations in thermal degradation patterns with increased PEO addition in GEL-ATF were noticed, while X-ray diffractometry (XRD) and Fourier transform infrared spectroscopy (FTIR) results of the tested films provided insights into structural and chemical modifications, indicating changes in crystallinity and molecular interactions upon increased PEO concentration in the film compositions. The microstructural observations confirmed that PEO incorporation led to smoother film surfaces, suggesting a more uniform matrix, which could enhance the film's barrier and mechanical properties. Furthermore, applying PEO into GLE-ATF films exhibited strong antimicrobial activity against Bacillus cereus ATCC 11778. Overall, the present study found that the higher PEO (>1%) concentrations significantly influenced the physical and mechanical properties of GEL-ATF-based edible films. This newly developed edible film could be an effective alternative to inedible polymers for sustainable food packaging solutions.
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Affiliation(s)
- Karthikeyan Venkatachalam
- Faculty of Innovative Agriculture, Fisheries and Food, Prince of Songkla University Surat Thani Campus, Makham Tia, Mueang Surat Thani 84000 Thailand
| | - Narin Charoenphun
- Faculty of Science and Arts, Burapha University Chanthaburi Campus, Khamong, Thamai Chanthaburi 22170 Thailand
| | - Paramee Noonim
- Faculty of Innovative Agriculture, Fisheries and Food, Prince of Songkla University Surat Thani Campus, Makham Tia, Mueang Surat Thani 84000 Thailand
| | - Jaraslak Pechwang
- Faculty of Innovative Agriculture, Fisheries and Food, Prince of Songkla University Surat Thani Campus, Makham Tia, Mueang Surat Thani 84000 Thailand
| | - Somwang Lekjing
- Faculty of Innovative Agriculture, Fisheries and Food, Prince of Songkla University Surat Thani Campus, Makham Tia, Mueang Surat Thani 84000 Thailand
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Skrdla PJ, Coscia BJ, Gavartin J, Browning A, Shelley J, Sanders JM. Complexation Mechanisms of Aqueous Amylose: Molecular Dynamics Study Using 3-Pentadecylphenol. Mol Pharm 2024; 21:3540-3552. [PMID: 38900044 DOI: 10.1021/acs.molpharmaceut.4c00235] [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] [Indexed: 06/21/2024]
Abstract
Molecular dynamics (MD) simulations of linear amylose fragments containing 10 to 40 glucose units were used to study the complexation of the prototypical compound, 3-pentadecylphenol (PDP)─a natural product with surfactant-like properties─in aqueous solution. The amylose-PDP binding leverages mainly hydrophobic interactions together with excluded volume effects. It was found that while the most stable complexes contained PDP inside the helical structure of the amylose in the expected guest-host (inclusion) complexation manner, at higher temperatures, the commonly observed PDP-amylose complexes often involved more nonspecific interactions than inclusion complexation. In the case where a stoichiometric excess of PDP was added to the simulation box, self-aggregation of the small molecule precluded its ability to enter the internal helical part of the oligosaccharide, and as a result, inclusion complexation became ineffective. MD simulation trajectories were analyzed preliminarily using cluster analysis (CA), followed by more rigorous solvent accessible surface area (SASA) determination over the temperature range spanning from 277 to 433 K. It was found that using the SASA of PDP corrected for its intrinsic conformational changes, together with a generic hidden Markov model (HMM), an adequate quantification of the different types of PDP-amylose aggregates was obtained to allow further analysis. The enthalpy change associated with the guest-host binding equilibrium constant (Kgh) in aqueous solution was estimated to be -75 kJ/mol, which is about twice as high as one might expect based on experimentally measured values of similar complexes in the solid state where the (unsolvated) helical structure of amylose remains rigid. On the other hand, the nonspecific binding (Kns) enthalpy change associated with PDP-amylose interactions in the same solution environment was found to be about half of the inclusion complexation value.
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Yamaguchi A, Arai S, Arai N. Design strategy for blends of biodegradable polyester and thermoplastic starch based on a molecular dynamics study of the phase-separated interface. Carbohydr Polym 2024; 333:122005. [PMID: 38494210 DOI: 10.1016/j.carbpol.2024.122005] [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: 11/23/2023] [Revised: 02/15/2024] [Accepted: 02/26/2024] [Indexed: 03/19/2024]
Abstract
Molecular insight into the phase-separated interface formed when biodegradable polyesters and thermoplastic starch (TPS) are melt-blended is valuable for the design of composites. In this study, eight different interfaces combining four major biodegradable polyesters (PLA, PBS, PHB and PBAT) and two TPSs [unmodified TPS (nTPS) and citrate-modified TPS (cTPS)] were investigated by using molecular dynamics (MD) simulations. According to the MD simulation results, PBS, PHB and PBAT diffuse readily into the TPS and form compatible interfaces, whereas PLA is less compatible with the TPS. The results of tensile simulations show that PBS and PBAT adhere well to TPS; in particular, PBS/cTPS and PBAT/cTPS exhibit high interfacial-fracture energy (G). Both PLA and PHB blended with TPS exhibit low G because PLA is less compatible with TPS and PHB and TPS have low electrostatic interaction. The reason for the high G of PBS/cTPS and PBAT/cTPS is thought to be a combination of three factors: (i) formation of a deep compatible interface, (ii) suppression of void growth by electrostatic interactions and (iii) absorption of strain energy by a change in the conformation of the molecular chains. These three interfacial adhesion mechanisms should be considered when designing biodegradable polyester/TPS blends with good mechanical properties.
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Affiliation(s)
- Akihiro Yamaguchi
- Circular Industries Research Department, Production Engineering and MONOZUKURI Innovation Center, Research and Development Group, Hitachi, Ltd., 2-9-2, Yoshida, Totsuka, Yokohama, Kanagawa 244-0817, Japan; Department of Mechanical Engineering, Keio University, 3-14-1, Hiyoshi, Kohoku, Yokohama, Kanagawa 223-8522, Japan.
| | - Satoshi Arai
- Material and Solution Department, Supply Chain Resilience Division, Hitachi High-Tech Corp., 1-17-1, Toranomon, Minato, Tokyo 105-6409, Japan.
| | - Noriyoshi Arai
- Department of Mechanical Engineering, Keio University, 3-14-1, Hiyoshi, Kohoku, Yokohama, Kanagawa 223-8522, Japan.
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Liu JZ, Wang L, Jiang LJ, Lyu HC, Yuan Q, Wang GF, Fu YJ, Cui Q. In sight the behavior of natural Bletilla striata polysaccharide hydrocolloids by molecular dynamics method. Int J Biol Macromol 2024; 266:131245. [PMID: 38554922 DOI: 10.1016/j.ijbiomac.2024.131245] [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: 09/25/2023] [Revised: 03/24/2024] [Accepted: 03/27/2024] [Indexed: 04/02/2024]
Abstract
Plant polysaccharides, distinguished by diverse glycosidic bonds and various cyclic sugar units, constitute a subclass of primary metabolites ubiquitously found in nature. Contrary to common understanding, plant polysaccharides typically form hydrocolloids upon dissolution in water, even though both excessively high and low temperatures impede this process. Bletilla striata polysaccharides (BSP), chosen for this kinetic study due to their regular repeating units, help elucidate the relationship between polysaccharide gelation and temperature. It is suggested that elevated temperatures enhance the mobility of BSP molecular chains, resulting in a notable acceleration of hydrogen bond breakage between BSP and water molecules and consequently, compromising the conformational stability of BSPs to some extent. This study unveils the unique relationship between polysaccharide dissolution processes and temperature from a kinetics perspective. Consequently, the conclusion provides a dynamical basis for comprehending the extraction and preparation of natural plant polysaccharide hydrocolloids, pharmaceuticals and related fields.
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Affiliation(s)
- Ju-Zhao Liu
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China.
| | - Lu Wang
- School of Life Sciences, Westlake University, Hangzhou 310030, PR China
| | - Li-Jie Jiang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China
| | - Hong-Chang Lyu
- Institute of Automation, Chinese Academy of Sciences, Beijing 100190, PR China
| | - Qiang Yuan
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China
| | - Guang-Fu Wang
- HIT Center for Life Sciences, School of Life Science and Technology, Harbin Institute of Technology, Harbin 150001, PR China
| | - Yu-Jie Fu
- College of Forestry, Beijing Forestry University, No. 35, Tsinghua East Road, Haidian District, Beijing 100083, PR China
| | - Qi Cui
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou 311402, PR China.
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7
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He T, Zhao L, Wang L, Liu L, Liu X, Dhital S, Hu Z, Wang K. Gallic acid forms V-amylose complex structure with starch through hydrophobic interaction. Int J Biol Macromol 2024; 260:129408. [PMID: 38228203 DOI: 10.1016/j.ijbiomac.2024.129408] [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: 10/31/2023] [Revised: 12/09/2023] [Accepted: 01/09/2024] [Indexed: 01/18/2024]
Abstract
This study aimed to investigate the role of amylose and amylopectin in the formation of starch-polyphenol complex and elucidate the interaction mechanisms. Gallic acid (GA) was used to complex with maize starch with various amylose contents. Results showed GA formed V-type crystals with normal maize starch (NMS) and high amylose maize starch (HAMS), while higher relative crystallinity was exhibited in HAMS-GA complexes than NMS counterparts. Molecular structure analysis revealed more amylose in GA-starch complexes than in treated starch counterparts without GA, and this was more apparent in HAMS than NMS, implying amylose is preferred to complex with GA than amylopectin. FTIR detected higher R1047/1022 value in starch-GA complexes than their starch counterparts without GA, suggesting increased short-range ordered structrure of complexes. Typical signatures of hydrophobic interactions were further revealed by isothermal titration calorimetry, indicating the complexation of GA to starch is mainly through hydrophobic bonds. More binding sites were observed for HAMS (72.50) than NMS (11.33), which proves the preferences of amylose to bind with GA. Molecular dynamics simulated the complexation of GA to amylose, and confirmed hydrophobic bond is the main interaction force. These findings would provide guidance for precise design and utilization of starch-polyphenol complexes in functional foods.
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Affiliation(s)
- Ting He
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China; Bioresource Processing Research Institute of Australia (BioPRIA), Department of Chemical and Biological Engineering, Monash University, Clayton Campus, VIC 3800, Australia
| | - Lei Zhao
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Liang Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Lin Liu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Xuwei Liu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Sushil Dhital
- Bioresource Processing Research Institute of Australia (BioPRIA), Department of Chemical and Biological Engineering, Monash University, Clayton Campus, VIC 3800, Australia
| | - Zhuoyan Hu
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China
| | - Kai Wang
- Guangdong Provincial Key Laboratory of Food Quality and Safety, College of Food Science, South China Agricultural University, 483 Wushan Road, Guangzhou 510642, China.
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Luo K, Zhu X, Kim YR. Short-chain glucan self-assembly for green synthesis of functional biomaterials: Mechanism, synthesis, and microstructural control. Carbohydr Polym 2023; 318:121140. [PMID: 37479447 DOI: 10.1016/j.carbpol.2023.121140] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Revised: 06/19/2023] [Accepted: 06/20/2023] [Indexed: 07/23/2023]
Abstract
Short-chain glucan (SCG) is a linear homopolymer containing 10 to 50 glucose units linked with α(1,4) glycosidic bonds. With its abundant, low-cost, nontoxic, biodegradable/biocompatible nature, self-assembled SCG particles (SSC) have emerged as functional biomaterials, which have recently attracted tremendous attentions in various fields. SCG self-assembly occurs through the spontaneous association of molecules under equilibrium conditions into stable and structurally well-defined nanoscale or micrometer-scale aggregates, which is governed by various intermolecular non-covalent interactions, including hydrogen-bonding, electrostatic, hydrophobic, and van der Waals. With precise and effective control of the self-assembly process of SSC, its structural modulation and function integration can be expected. Thus, we convinced that SCG self-assembly could provide an effective means of developing starch-based functional biomaterials with beneficial health properties and wide application in food industries. In this review, we provide an overview of recent advances in the green approach for the self-assembly of SSC, as well as the influence of thermodynamic and kinetic factors on its morphology and physicochemical properties. We highlight recent contributions to developing strategies for the construction of SSC with increasing complexity and functionality that are suitable for a variety of food applications. Finally, we briefly outline our perspectives and discuss the challenges in the field.
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Affiliation(s)
- Ke Luo
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province 266003, China.
| | - Xiaoning Zhu
- College of Food Science and Engineering, Ocean University of China, Qingdao, Shandong Province 266003, China
| | - Young-Rok Kim
- Institute of Life Science and Resources & Department of Food Science and Biotechnology, Kyung Hee University, Yongin 17104, South Korea.
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Yamaguchi A, Arai S, Arai N. Molecular insight into toughening induced by core-shell structure formation in starch-blended bioplastic composites. Carbohydr Polym 2023; 315:120974. [PMID: 37230615 DOI: 10.1016/j.carbpol.2023.120974] [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: 02/21/2023] [Revised: 04/26/2023] [Accepted: 04/30/2023] [Indexed: 05/27/2023]
Abstract
Binary and ternary blends with poly(lactic acid) (PLA), poly(butylene succinate) (PBS), and thermoplastic starch (TPS) were prepared by a melt process to produce biodegradable biomass plastics with both economical and good mechanical properties. The mechanical and structural properties of each blend were evaluated. Molecular dynamics (MD) simulations were also conducted to examine the mechanisms underlying the mechanical and structural properties. PLA/PBS/TPS blends showed improved mechanical properties compared with PLA/TPS blends. The PLA/PBS/TPS blends with a TPS ratio of 25-40 wt% showed higher impact strength than PLA/PBS blends. Morphology observations showed that in the PLA/PBS/TPS blends, a structure similar to that of core-shell particles with TPS as the embedding phase and PBS as the coating phase was formed, and that the trends in morphology and impact strength changes were consistent. The MD simulations suggested that PBS and TPS tightly adhered to each other in a stable structure at a specific intermolecular distance. From these results, it is clear that PLA/PBS/TPS blends are toughened by the formation of a core-shell structure in which the TPS core and the PBS shell adhered well together and stress concentration and energy absorption occurred in the vicinity of the core-shell structure.
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Affiliation(s)
- Akihiro Yamaguchi
- Circular Industries Research Department, Production Engineering and MONOZUKURI Innovation Center, Research and Development Group, Hitachi, Ltd., 2-9-2, Yoshida, Totsuka, Yokohama, Kanagawa 244-0817, Japan; Department of Mechanical Engineering, Keio University, 3-14-1, Hiyoshi, Kohoku, Yokohama, Kanagawa 223-8522, Japan.
| | - Satoshi Arai
- Material and Solution Department, Supply Chain Resilience Division, Hitachi High-Tech Corp., 1-17-1, Toranomon, Minato, Tokyo 105-6409, Japan.
| | - Noriyoshi Arai
- Department of Mechanical Engineering, Keio University, 3-14-1, Hiyoshi, Kohoku, Yokohama, Kanagawa 223-8522, Japan.
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10
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Zhang X, Liu Z, Wang L, Lan X, He G, Jia D. Effect of hydroxypropyl distarch phosphate on the retrogradation properties of sterilized pea starch jelly and its possible mechanism. Int J Biol Macromol 2023; 247:125629. [PMID: 37399874 DOI: 10.1016/j.ijbiomac.2023.125629] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2023] [Revised: 06/04/2023] [Accepted: 06/28/2023] [Indexed: 07/05/2023]
Abstract
Due to the high content of amylose in pea starch (PS), PS jelly is prone to retrogradation during storage and its quality reduces subsequently. Hydroxypropyl distarch phosphate (HPDSP) shows a potential inhibitory effect on the retrogradation of starch gel. Based on this, five retrograded PS-HPDSP blends containing 1 %, 2 %, 3 %, 4 % and 5 % (w/w, based on the weight of PS) of HPDSP were prepared, and their long-range, short-range ordered structure and retrogradation properties, and the possible interaction between PS and HPDSP were investigated. The addition of HPDSP significantly reduced the hardness of PS jelly and maintained its springiness during cold storage, and this effect was enhanced with HPDSP dosage being from 1 % to 4 %. The presence of HPDSP destroyed both short-range ordered structure and long-range ordered structure. Rheological results indicated that all the gelatinized samples were typical non-Newtonian fluids with shear-thinning characteristics and HPDSP increased their viscoelasticity in a dose-dependent manner. In conclusion, HPDSP delays the retrogradation of PS jelly mainly by combining with amylose in PS through hydrogen bonds and steric hindrance.
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Affiliation(s)
- Xueer Zhang
- College of Biomass Science & Engineering, Sichuan University, Chengdu 610065, China
| | - Zhenyu Liu
- College of Biomass Science & Engineering, Sichuan University, Chengdu 610065, China
| | - Ling Wang
- Sichuan Branch of Shenzhen Ziteng Intellectual Property Agency Co., Ltd., Chengdu 610065, China
| | - Xuyue Lan
- Pepsi Foods (China) Co., Ltd., Shanghai 200023, China
| | - Guiping He
- College of Biomass Science & Engineering, Sichuan University, Chengdu 610065, China
| | - Dongying Jia
- College of Biomass Science & Engineering, Sichuan University, Chengdu 610065, China.
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Gengatharan A, Rahim MHA. The application of clove extracts as a potential functional component in active food packaging materials and model food systems: A mini-review. APPLIED FOOD RESEARCH 2023; 3:100283. [DOI: 10.1016/j.afres.2023.100283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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12
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Deng C, Zhang T, Zhang X, Gu T, Xu L, Yu Z, Zheng M, Zhou Y. Multiscale structure and precipitation mechanism of debranched starch precipitated by different alcohols. Int J Biol Macromol 2023; 241:124562. [PMID: 37088190 DOI: 10.1016/j.ijbiomac.2023.124562] [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: 12/30/2022] [Revised: 02/22/2023] [Accepted: 04/18/2023] [Indexed: 04/25/2023]
Abstract
Alcohol solution is a cheap, simple, and effective precipitating solvent frequently used for separating debranched starch (DBS), yet little is known about the precipitation mechanism of DBS by different alcohols. This study precipitated DBS from pullulanase-hydrolyzed starch using ethanol, n-butanol, and isopentanol. The multiscale structures of DBS were characterized, including chain length, single/double helix, and crystalline. The chain conformation and precipitation mechanism of DBS in different alcohols was investigated using molecular dynamics (MD) simulation. DBS precipitated by n-butanol contained the largest proportion of short chain (DP6-24, 83.2 %), the highest V-type crystallinity (21.1 %), and the largest single-helix content (24.7 %). A single helix conformation of DBS chain was determined in alcohols, where alcohol molecules entered the helix cavity. Intra/inter-molecular hydrogen bonds stabilized the helix, with a large number of hydrogen bonds leading to strong molecular interaction and stable helical structure. The solvent accessible surface area of DBS chain decreased by 7.88-19.32 % in alcohols, and the radial distribution function revealed that the first solvent layer of DBS chain at 0.29 nm was closely related to hydrogen bonding. This study provides a basis for the choice of precipitation solvent for preparing DBS with different chain lengths and physicochemical properties.
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Affiliation(s)
- Changyue Deng
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Tiantian Zhang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Xiumei Zhang
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Tingting Gu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Li Xu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Zhenyu Yu
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China
| | - Mingming Zheng
- Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China; Key Laboratory of Oilseeds Processing, Ministry of Agriculture, Hubei Key Laboratory of Lipid Chemistry and Nutrition, Oil Crops and Lipids Process Technology National & Local Joint Engineering Laboratory, Oil Crops Research Institute, Chinese Academy of Agricultural Sciences, Wuhan 430062, China
| | - Yibin Zhou
- Key Laboratory of Jianghuai Agricultural Product Fine Processing and Resource Utilization of Ministry of Agriculture and Rural Affairs, College of Tea & Food Science and Technology, Anhui Agricultural University, Hefei 230036, China; Food Processing Research Institute, Anhui Agricultural University, Hefei 230036, China.
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13
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Effects of water/ionic liquid ratios on the physicochemical properties of high amylose maize starch-lauric acid complex. Food Hydrocoll 2023. [DOI: 10.1016/j.foodhyd.2022.108134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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14
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Zhou J, Jia Z, Wang M, Wang Q, Barba FJ, Wan L, Wang X, Fu Y. Effects of Laminaria japonica polysaccharides on gelatinization properties and long-term retrogradation of wheat starch. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107908] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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15
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Wang Y, Liu T, Xie J, Cheng M, Sun L, Zhang S, Xin J, Zhang N. A review on application of molecular simulation technology in food molecules interaction. Curr Res Food Sci 2022; 5:1873-1881. [PMID: 36276243 PMCID: PMC9579209 DOI: 10.1016/j.crfs.2022.10.012] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2022] [Revised: 10/07/2022] [Accepted: 10/09/2022] [Indexed: 11/06/2022] Open
Abstract
Molecular simulation is a new technology to analyze the interaction between molecules. This review mainly summarizes the application of molecular simulation technology in the food industry. This technology has been employed to assess structural changes of biomolecules, the interaction between components, and the mechanism of physical and chemical property alterations. These conclusions provide a deeper understanding of the molecular interaction mechanism in foods, break through the limitations of scientific experiments and avoid blind and time-consuming scientific research. In this paper, the advantages and development trends of molecular simulation technology in the food research field are described. This methodology can be used to contribute to further studies of the mechanism of molecular interactions in food, confirm experimental results and provide new ideas for research in the field of food sciences.
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Affiliation(s)
- Yan Wang
- Key Laboratory for Food Science & Engineering, Harbin University of Commerce, Harbin, 150076, PR China
| | - Tianjiao Liu
- Key Laboratory for Food Science & Engineering, Harbin University of Commerce, Harbin, 150076, PR China
| | - Jinhui Xie
- Key Laboratory for Food Science & Engineering, Harbin University of Commerce, Harbin, 150076, PR China
| | - Meijia Cheng
- Key Laboratory for Food Science & Engineering, Harbin University of Commerce, Harbin, 150076, PR China
| | - Lirui Sun
- Key Laboratory for Food Science & Engineering, Harbin University of Commerce, Harbin, 150076, PR China
| | - Shuai Zhang
- Key Laboratory for Food Science & Engineering, Harbin University of Commerce, Harbin, 150076, PR China
| | - Jiaying Xin
- Key Laboratory for Food Science & Engineering, Harbin University of Commerce, Harbin, 150076, PR China,State Key Laboratory for Oxo Synthesis & Selective Oxidation, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou, 730000, PR China
| | - Na Zhang
- Key Laboratory for Food Science & Engineering, Harbin University of Commerce, Harbin, 150076, PR China,Corresponding author.
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16
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Developing DHA microcapsules using linear dextrin aggregates of different chain length distributions. Carbohydr Polym 2022; 293:119721. [DOI: 10.1016/j.carbpol.2022.119721] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 06/06/2022] [Accepted: 06/06/2022] [Indexed: 11/18/2022]
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17
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Wang C, Chao C, Yu J, Copeland L, Huang Y, Wang S. Mechanisms Underlying the Formation of Amylose- Lauric Acid-β-Lactoglobulin Complexes: Experimental and Molecular Dynamics Studies. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2022; 70:10635-10643. [PMID: 35994717 DOI: 10.1021/acs.jafc.2c04523] [Citation(s) in RCA: 15] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The aim of the present study was to reveal the mechanisms underlying the formation of ternary complexes with a model system of amylose (AM), lauric acid (LA), and β-lactoglobulin (βLG) using experimental studies and molecular dynamics (MD) simulations. Experimental analyses showed that hydrophobic interactions and hydrogen bonds contributed more than electrostatic forces to the formation of the AM-LA-βLG complex. MD simulations indicated that interactions between AM and βLG through electrostatic forces and hydrogen bonds, and to a less extent van der Waals forces, and interactions between AM and LA through van der Waals forces, were mostly responsible for complex formation. The combination of experimental results and MD simulations has provided new mechanistic insights and led us to conclude that hydrophobic interactions, van der Waals forces between AM and LA, and van der Waals forces and hydrogen bonds between AM and βLG were the main driving forces for the formation of the AM-LA-βLG complex.
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Affiliation(s)
- Cuiping Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
- School of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Chen Chao
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
- School of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Jinglin Yu
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
| | - Les Copeland
- School of Life and Environmental Sciences, The University of Sydney, Sydney, New South Wales Australia 2006
| | - Yongchun Huang
- College of Biological and Chemical Engineering, Guangxi University of Science and Technology, Liuzhou 545006, China
| | - Shujun Wang
- State Key Laboratory of Food Nutrition and Safety, Tianjin University of Science & Technology, Tianjin 300457, China
- School of Food Engineering and Biotechnology, Tianjin University of Science & Technology, Tianjin 300457, China
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18
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Baldassa MA, Dias RV, Oliveira LC, Feitosa E. Aqueous mixtures of cornstarch and Pluronic® F127 studied by experimental and computational techniques. Food Res Int 2022; 158:111515. [DOI: 10.1016/j.foodres.2022.111515] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 05/31/2022] [Accepted: 06/13/2022] [Indexed: 11/30/2022]
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19
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Atomistic and Coarse-Grained Simulations of Bulk Amorphous Amylose Above and Below the Glass Transition. Macromolecules 2022. [DOI: 10.1021/acs.macromol.1c01925] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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20
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Schahl A, Lemassu A, Jolibois F, Réat V. Evidence for amylose inclusion complexes with multiple acyl chain lipids using solid-state NMR and theoretical approaches. Carbohydr Polym 2022; 276:118749. [PMID: 34823780 DOI: 10.1016/j.carbpol.2021.118749] [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: 06/30/2021] [Revised: 09/22/2021] [Accepted: 10/08/2021] [Indexed: 11/02/2022]
Abstract
Amylose is known to form inclusion complexes in the presence of hydrophobic guests. Among lipids, only single-chain fatty acids have been reported as possible guests with the surrounding amylose in a well-defined V-helix conformation. Using experimental 13C solid-state NMR, we studied the formation of inclusion complexes between amylose and a variety of multiple-chains lipids of increasing complexity. Molecular dynamics simulations and calculations of 13C isotropic chemical shifts using the Density Functional Theory approach were performed to support the interpretation of experimental spectra. We provide unambiguous evidences that amylose forms inclusion complexes with lipids bearing multiple acyl chains. Amylose conformations around these lipids are characterized by {ϕ,ψ} anomeric bond dihedral angles near {115°,105°}. In the 13C NMR spectra, this translates into C1 and C4 chemical shifts of 102.5 ppm and 81.1 ppm, regardless of the helical conformation of the amylose surrounding the acyl chains.
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Affiliation(s)
- Adrien Schahl
- Institut de Pharmacologie et Biologie Structurale, IPBS, UMR5089, Université de Toulouse, CNRS, UPS, BP 64182, 205 route de Narbonne, 31077 Toulouse, Cedex 04, France; LPCNO, Université Fédérale de Toulouse Midi-Pyrénées, UMR5215, INSA-CNRS-UPS, 135 avenue de Rangueil, 31077 Cedex 4 Toulouse, France
| | - Anne Lemassu
- Institut de Pharmacologie et Biologie Structurale, IPBS, UMR5089, Université de Toulouse, CNRS, UPS, BP 64182, 205 route de Narbonne, 31077 Toulouse, Cedex 04, France
| | - Franck Jolibois
- LPCNO, Université Fédérale de Toulouse Midi-Pyrénées, UMR5215, INSA-CNRS-UPS, 135 avenue de Rangueil, 31077 Cedex 4 Toulouse, France
| | - Valérie Réat
- Institut de Pharmacologie et Biologie Structurale, IPBS, UMR5089, Université de Toulouse, CNRS, UPS, BP 64182, 205 route de Narbonne, 31077 Toulouse, Cedex 04, France.
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21
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Development and Characterization of Active Native and Cross-Linked Pearl Millet Starch-Based Film Loaded with Fenugreek Oil. Foods 2021; 10:foods10123097. [PMID: 34945648 PMCID: PMC8700877 DOI: 10.3390/foods10123097] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/24/2021] [Revised: 11/23/2021] [Accepted: 12/07/2021] [Indexed: 12/25/2022] Open
Abstract
In this study, cross-linked pearl millet starch and fenugreek oil was used to develop active starch edible films to overcome the limitations of native starch and to substitute artificial preservatives with natural one. The starch was cross-linked at three levels (1%, 3% and 5%) using sodium trimetaphosphate (STMP), and physicochemical properties were studied. Moreover, a comparative study was conducted among four samples of films prepared using native starch, cross-linked starch, and native and cross-linked starch loaded with fenugreek oil for physical, thermal, mechanical, morphological, and antibacterial properties. The solubility, swelling, and amylose content of native and modified starch varied from 11.25–12.75%, 12.91–15.10 g/g, and 8.97–16.55%, respectively. The values of these parameters were reduced as the concentration of STMP increased. Cross-linked starch films showed lower moisture, solubility, water vapor permeability(WVP), and elongation at break (EB) values while having higher thickness, opacity, thermal, and tensile strength values. The microscopic images of cross-linked starch films showed smooth surfaces and the absence of ridges, pores, and cracks. The films loaded with fenugreek oil showed different results; the moisture content, water solubility, and tensile strength were decreased while thickness, opacity, WVP, and EB were increased. The onset temperature and peak temperature were lower, while enthalpy of gelatinization was increased to a greater extent than films without oil. The addition of fenugreek oil to films showed a good inhibition area of 40.22% for native+oil films and 41.53% for cross-linked+oil films % against Escherichia coli. This study confirmed the successful utilization of fenugreek oil as a very effective antimicrobial agent in preparing edible films.
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22
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Mohamed IO. Effects of processing and additives on starch physicochemical and digestibility properties. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100039] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022] Open
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23
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Complexation of 26-Mer Amylose with Egg Yolk Lipids with Different Numbers of Tails Using a Molecular Dynamics Simulation. Foods 2021; 10:foods10102355. [PMID: 34681404 PMCID: PMC8535831 DOI: 10.3390/foods10102355] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2021] [Revised: 09/30/2021] [Accepted: 10/01/2021] [Indexed: 11/24/2022] Open
Abstract
A molecular dynamics simulation of mixtures of 26-mer amylose with three different egg yolk lipids, namely, cholesterol, triglyceride and 1-palmitoyl-2-oleoyl-sn-glycero-3-phosphocholine (POPC), demonstrated the formation of a stable complex. The 26-mer amylose fluctuated between a coiled and an extended helical conformation. The complex was a V-type amylose complex, with the hydrophobic tail of the lipids being inside the hydrophobic helical cavity of the amylose. The number of glucose units per turn was six for the two helical regions of the amylose-POPC complex and the palmitoyl tail region of the amylose-triglyceride complex. This value was eight for the cholesterol and the two-tail helical region in the amylose-triglyceride complex. Two tails of the POPC were in two different hydrophobic helical regions of the 26-mer amylose, whereas the palmitoyl tail of the triglyceride lay in one hydrophobic helical region and the linoleoyl and oleoyl tails both lay in another helical region, and the cross-sectional area of the latter was larger than the former to accommodate the two tails. The radii of the gyration of the complex were lower for all three cases compared to that of one single amylose. In addition, the stability of the complexes was ranked in the following order: POPC < cholesterol < triglyceride, with their average binding energy being −97.83, −134.09, and −198.35 kJ/mol, respectively.
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24
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Hydroxypropyl methylcellulose and hydroxypropyl starch: Rheological and gelation effects on the phase structure of their mixed hydrocolloid system. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106598] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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25
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Ma R, Jin Z, Wang F, Tian Y. Contribution of starch to the flavor of rice-based instant foods. Crit Rev Food Sci Nutr 2021; 62:8577-8588. [PMID: 34047638 DOI: 10.1080/10408398.2021.1931021] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Increased consumption of instant foods has led to research attention, especially rice-based instant foods. Starch, one of the most important components of rice, significantly affects food quality. However, the mechanisms by which starch contributes to rice-based instant foods flavor are poorly understood in many cases. The review aims to describe the common mechanisms by which starch contributes to food flavor, including participating in flavor formation, and affecting flavor release throughout starch multiscale structure: particle morphology, crystal structure, molecular structure. Five specific examples of rice-based instant foods were further analyzed to summarize the specific contribution of starch to flavor, including instant rice, fermented rice cake, rice noodles, fried rice, and rice dumplings. During foods processing, reducing sugars produced by heating or enzymatic hydrolysis of starch participate in Maillard reaction, caramelization and thermal degradation, which directly or indirectly affect the formation of flavor compounds. In addition, adsorption by granules, encapsulation by retrograded V-type crystal, and controlled release by starch gel all contribute to rice-based instant food flavor qualities. These mechanisms jointly contribute to flavor compounds formation and release. Proper theoretical application and improved processing methods are needed to promote the high-quality, mechanization, and automation of rice-based instant foods production.
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Affiliation(s)
- Rongrong Ma
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Zhengyu Jin
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Fan Wang
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
| | - Yaoqi Tian
- State Key Laboratory of Food Science and Technology, Jiangnan University, Wuxi, China.,School of Food Science and Technology, Jiangnan University, Wuxi, China
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26
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Zhao W, Yan T, Yin W. Structural characterization, storage stability, and antioxidant activity of a novel amylose–lycopene inclusion complex. J FOOD PROCESS PRES 2021. [DOI: 10.1111/jfpp.15493] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Wenhong Zhao
- School of Food Science and Technology Henan University of Technology Zhengzhou China
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety Guangzhou China
| | - Tingting Yan
- School of Food Science and Technology Henan University of Technology Zhengzhou China
| | - Wenting Yin
- School of Food Science and Technology Henan University of Technology Zhengzhou China
- Guangdong Province Key Laboratory for Green Processing of Natural Products and Product Safety Guangzhou China
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27
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Tang P, Liu Y, Gao Y, Wang Y, Zhang H, Liu Y, Wu D. Molecular simulation, characteristics and mechanism of thermal-responsive acetylated amylose V-type helical complexes. J Mater Chem B 2021; 9:3389-3400. [PMID: 33881436 DOI: 10.1039/d1tb00102g] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
To explore the thermal-responsive characteristics of acetylated amylose-guest V-type helical complexes (AAGHCs) and their potential use as thermal-responsive drug carriers, different types of AAGHCs were built, in which acetylated amylose was used as a host, and iodine, propofol, or hexane was utilized as the guest molecule. Their thermal-responsive characteristics were investigated through molecular dynamic (MD) simulation and corresponding experiments. MD simulation showed that the thermal-responsive helix-unfolding and guest-release behavior in AAGHCs, and the complete unfolding of AAGHC could be divided into brewing, triggering and collapsing periods. Energy analysis revealed that the Lana-Jones potential is an important binding energy that bridges host and guest molecules and enhances the stability of the helix. The various types or number of guests showed different binding energies. The stronger the binding energy, higher is the temperature required to trigger the unfolding of the helix and the releasing of guests. FT-IR and X-ray diffraction analyses confirmed the structures of AAGHCs. The change in hydrated size, and UV-VIS absorption of AAGHCs at high temperatures both confirmed the thermal-responsiveness of AAGHCs. The fluorescence fluctuation of loaded 7-hydroxycoumarin reflected the same thermal-responsive process and mechanism as MD simulation. This study provides meaningful theoretical guidance for the design of thermal-responsive drug carriers based on acetylated amylose-guest V-type helical complexes.
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Affiliation(s)
- Peng Tang
- Key Laboratory of Biomedical Information Engineering of the Ministry of Education, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an 710049, P. R. China.
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28
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Tu D, Ou Y, Zheng Y, Zhang Y, Zheng B, Zeng H. Effects of freeze-thaw treatment and pullulanase debranching on the structural properties and digestibility of lotus seed starch-glycerin monostearin complexes. Int J Biol Macromol 2021; 177:447-454. [PMID: 33636260 DOI: 10.1016/j.ijbiomac.2021.02.168] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 02/20/2021] [Accepted: 02/21/2021] [Indexed: 11/19/2022]
Abstract
The effects of multiple cycles of freeze-thaw treatment, combined with pullulanase debranching, on the structural properties and digestibility of lotus seed starch-glycerin monostearin complexes were investigated. The formation and melting of ice crystals during freeze-thaw treatment disrupted the crystalline structure of the starch granules, creating pores which facilitated access of pullulanase to the interior of the granules. Pullulanase debranching increased the free amylose content of the starch, which promoted the formation of starch-lipid complexes, which, in turn, increased the proportion of resistant starch and the overall resistance of the starch to digestive enzyme action. These effects increased with the number of freeze-thaw cycles, because more cycles increased both the disruption of the granule structure and the extent of pullulanase debranching. These findings provide a basis for the preparation of functional foods with low glycemic indices, which have strong potential for management of type II diabetes.
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Affiliation(s)
- Dongkun Tu
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yujia Ou
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yixin Zheng
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yi Zhang
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China; China-Ireland International Cooperation Centre for Food Material Science and Structure Design, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Baodong Zheng
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China; China-Ireland International Cooperation Centre for Food Material Science and Structure Design, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hongliang Zeng
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China; Fujian Provincial Key Laboratory of Quality Science and Processing Technology in Special Starch, Fujian Agriculture and Forestry University, Fuzhou 350002, China; China-Ireland International Cooperation Centre for Food Material Science and Structure Design, Fujian Agriculture and Forestry University, Fuzhou 350002, China.
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29
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Physicochemical properties of heat-moisture treated, stearic acid complexed starch: The effect of complexation time and temperature. Int J Biol Macromol 2021; 175:98-107. [PMID: 33508365 DOI: 10.1016/j.ijbiomac.2021.01.124] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2020] [Revised: 01/18/2021] [Accepted: 01/18/2021] [Indexed: 12/20/2022]
Abstract
Starch modification has been extensively studied to alter its physicochemical properties based on human needs. Lowering the digestion rate of starch is one of the interests in food science research, since when it is nutritionally improved, it can reduce the risk of human chronic diseases. In this study, heat-moisture treatment (HMT) followed by inclusion complexation with stearic acid at various temperatures and times was applied to improve the functional properties of starch. Thermal analysis suggested the formation of type I and type II complexes after complexation at 90 °C, indicated by a endothermal peak at 107 and 122 °C, respectively, while native starch after complexation only resulted in type I complexes. The formation of crystalline complexes was also confirmed by XRD showing peaks at 2θ = 13.1° and 20.1°. Furthermore, the modified starch displayed a higher pasting temperature, considerably less swelling and significantly lower viscosity behavior. This implied that the starch granules were thermally and mechanically more stable. The granular appearance of the modified starch was confirmed with light microscopy that presented more intact granules and less ruptured granules, even after heating to 90 °C. This study offers a way to upgrade the nutritional properties of starch.
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30
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Sanders JM, Misra M, Mustard TJL, Giesen DJ, Zhang T, Shelley J, Halls MD. Characterizing moisture uptake and plasticization effects of water on amorphous amylose starch models using molecular dynamics methods. Carbohydr Polym 2021; 252:117161. [PMID: 33183612 DOI: 10.1016/j.carbpol.2020.117161] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Revised: 09/03/2020] [Accepted: 09/26/2020] [Indexed: 11/30/2022]
Abstract
Dynamics and thermophysical properties of amorphous starch were explored using molecular dynamics (MD) simulations. Using the OPLS3e force field, simulations of short amylose chains in water were performed to determine force field accuracy. Using well-tempered metadynamics, a free energy map of the two glycosidic angles of an amylose molecule was constructed and compared with other modern force fields. Good agreement of torsional sampling for both solvated and amorphous amylose starch models was observed. Using combined grand canonical Monte Carlo (GCMC)/MD simulations, a moisture sorption isotherm curve is predicted along with temperature dependence. Concentration-dependent activation energies for water transport agree quantitatively with previous experiments. Finally, the plasticization effect of moisture content on amorphous starch was investigated. Predicted glass transition temperature (Tg) depression as a function of moisture content is in line with experimental trends. Further, our calculations provide a value for the dry Tg for amorphous starch, a value which no experimental value is available.
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Affiliation(s)
| | | | | | | | - Teng Zhang
- Schrödinger Inc., New York, NY, 10036, USA
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31
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Schahl A, Gerber IC, Réat V, Jolibois F. Diversity of the Hydrogen Bond Network and Its Impact on NMR Parameters of Amylose B Polymorph: A Study Using Molecular Dynamics and DFT Calculations Within Periodic Boundary Conditions. J Phys Chem B 2020; 125:158-168. [PMID: 33356276 DOI: 10.1021/acs.jpcb.0c08631] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
Classical molecular dynamics simulations have been combined with quantum (DFT) calculations of 13C NMR parameters in order to relate the experimental spectrum of the double-helix form of the amylose B-polymorph in highly crystalline conditions not only to its 3D structure but also to the arrangement of atoms in the crystal lattice. Structures obtained from these simulations or from geometry optimization procedures at the DFT level have shown the presence of hydrogen bond networks between sugars of the same helix or between residues of the two chains of the double helix. 13C NMR parameter calculations have revealed the impact of such a network on the chemical shifts of carbon atoms. In addition, DFT calculations using periodic boundary conditions were compulsory to highlight the presence of two types of sugar within the crystal sample. It allows us to confirm, theoretically, the experimental hypothesis that the existence of two distinct sugar types in the NMR spectrum is a consequence of crystal packing.
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Affiliation(s)
- Adrien Schahl
- LPCNO, CNRS UMR 5215, Université de Toulouse-INSA-UPS, 135 av. Rangueil, F-31077 Toulouse, France.,Institut de Pharmacologie et Biologie Structurale, UMR 5089, CNRS-Université de Toulouse-UPS BP 64182, 205 route de Narbonne, 31077 Toulouse, Cedex 04, France
| | - Iann C Gerber
- LPCNO, CNRS UMR 5215, Université de Toulouse-INSA-UPS, 135 av. Rangueil, F-31077 Toulouse, France
| | - Valérie Réat
- Institut de Pharmacologie et Biologie Structurale, UMR 5089, CNRS-Université de Toulouse-UPS BP 64182, 205 route de Narbonne, 31077 Toulouse, Cedex 04, France
| | - Franck Jolibois
- LPCNO, CNRS UMR 5215, Université de Toulouse-INSA-UPS, 135 av. Rangueil, F-31077 Toulouse, France
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Ou Y, Zheng Y, Zhang Y, Zeng S, Zheng B, Zeng H. Effects of exogenous V-type complexes on the structural properties and digestibility of autoclaved lotus seed starch after retrogradation. Int J Biol Macromol 2020; 165:231-238. [DOI: 10.1016/j.ijbiomac.2020.09.153] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2020] [Revised: 08/27/2020] [Accepted: 09/20/2020] [Indexed: 12/14/2022]
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Itani K, Granstad S, Kaldhusdal M, Mydland LT, Svihus B. Varying starch to fat ratios in pelleted diets: I. Effects on nutrient digestibility and production performance in Eimeria-challenged broiler chickens. Br Poult Sci 2020; 61:703-709. [PMID: 32538137 DOI: 10.1080/00071668.2020.1782349] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
Abstract
1. The hypothesis was that a diet with a high starch to fat ratio (HS) impairs nutrient digestibility and growth performance, as compared to a diet with a low starch to fat ratio (LS) in Eimeria-challenged broilers. From days 10 to 29, 12 replicate pens of birds were given isocaloric and isonitrogenous steam-pelleted diets with either HS or LS, by replacing the wheat starch in one diet by a mixture of rapeseed oil and inert sand in the other. On d 17, a 10-fold dose of live vaccine strains of Eimeria spp. was administered via drinking water. Ileal samples were collected on days 16 and 29. 2. Starch content in the ileum tended to be higher on d 16 and was significantly higher on d 29 in the HS group. 3. The HS diet did not induce exceedingly high levels of starch in the ileum, suggesting there was no starch overload in the gut. Ileal starch digestibility was improved with increasing dietary starch level from 23% to 45%. This demonstrated the capacity of the broiler chicken to digest high levels of starch regardless of Eimeria spp. infection. Ileal energy digestibility was not affected by the treatments. 4. Weight gain did not differ between treatments; however, birds fed the LS diet were less efficient in feed conversion as compared to those fed the HS diet. 5. The use of isolated starch and the unintended higher extent of starch gelatinisation in the HS diet may have contributed to the higher starch digestibility in birds given the HS diet. Thus, the hypothesis that high ratios of starch to fat in pelleted diets may impair starch digestibility and production performance in Eimeria-challenged broiler chickens was not verified. Further work is required to clarify this research question, taking into consideration the physical form of starch source and the potentially confounding role of feed processing on starch availability.
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Affiliation(s)
- K Itani
- Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences , Ås, Norway
| | - S Granstad
- Norwegian Veterinary Institute , Oslo, Norway
| | | | - L T Mydland
- Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences , Ås, Norway
| | - B Svihus
- Department of Animal and Aquacultural Sciences, Norwegian University of Life Sciences , Ås, Norway
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Zheng Y, Ou Y, Zhang Y, Zheng B, Zeng H, Zeng S. Physicochemical properties and in vitro digestibility of lotus seed starch-lecithin complexes prepared by dynamic high pressure homogenization. Int J Biol Macromol 2020; 156:196-203. [DOI: 10.1016/j.ijbiomac.2020.04.032] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2020] [Revised: 03/29/2020] [Accepted: 04/04/2020] [Indexed: 12/20/2022]
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Abdel-Aal ESM, Hernandez M, Rabalski I, Hucl P. Composition of hairless canary seed oil and starch-associated lipids and the relationship between starch pasting and thermal properties and its lipids. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109257] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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Schahl A, Réat V, Jolibois F. Structures and NMR spectra of short amylose-lipid complexes. Insight using molecular dynamics and DFT quantum chemical calculations. Carbohydr Polym 2020; 235:115846. [DOI: 10.1016/j.carbpol.2020.115846] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2019] [Revised: 12/06/2019] [Accepted: 01/08/2020] [Indexed: 01/29/2023]
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Concepcion JCT, Calingacion M, Garson MJ, Fitzgerald MA. Lipidomics reveals associations between rice quality traits. Metabolomics 2020; 16:54. [PMID: 32306193 DOI: 10.1007/s11306-020-01670-6] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/20/2019] [Accepted: 03/25/2020] [Indexed: 01/05/2023]
Abstract
INTRODUCTION Lipids are a diverse group of macromolecules that occur in rice grains and are known to impact rice grain properties. Identifying the relationships between specific lipids and traits of quality is important to improve varietal selection for high quality rice. OBJECTIVES Using untargeted lipidomics, this study aims to understand the role of lipids on different traits of quality by identifying the genotypic effect of lipids and their impact on traits of cooking and eating quality of a rice mapping population. METHODS Lipids from milled rice grains of three sets of rice samples were screened by ultra-performance liquid chromatography-mass spectrometry (UPLC-MS) in the positive ionisation mode. Lipid features were putatively identified using analytical standards and online databases. Multivariate statistics were carried out to identify the lipid profile of varieties across three experiments. Correlation analysis was carried out between lipid features and 12 quality traits across a rice mapping population that segregates for grain physical and texture-associated traits. RESULTS Thousands of features in rice grain lipids were detected, and were grouped into six categories-fatty acyls, glycerolipids, glycerophospholipids, sphingolipids, sterol lipids and prenol lipids. A strong genotypic basis for the lipid profile was observed among the four varieties grown under five nitrogen treatments. Clear differentiation in lipid profiles between waxy and non-waxy rice was observed. Strong correlations were observed for putative lipids that form the amylose-lipid complex and with amylose content and viscosity parameters. CONCLUSIONS This study demonstrates the strength of untargeted lipidomics in putatively determining features that differentiate varieties from each other, and reveals the role of specific lipids on the physical and textural quality of rice.
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Affiliation(s)
- Jeanaflor Crystal T Concepcion
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD, 4072, Australia.
- Department of Crop Sciences, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA.
| | - Mariafe Calingacion
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD, 4072, Australia
- Department of Chemistry, College of Science De La Salle University, Manila, Philippines
| | - Mary J Garson
- School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, QLD, 4072, Australia
| | - Melissa A Fitzgerald
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD, 4072, Australia.
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Cui F, Zi H, Liu H, Zhang S, Yuan B. A study of starch-urea-water mixtures with a combination of molecular dynamics simulation and traditional characterization methods. Int J Biol Macromol 2020; 148:121-128. [DOI: 10.1016/j.ijbiomac.2019.12.268] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 12/15/2019] [Accepted: 12/31/2019] [Indexed: 01/19/2023]
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G. Al-Hashimi A, Ammar AB, G. L, Cacciola F, Lakhssassi N. Development of a Millet Starch Edible Film Containing Clove Essential Oil. Foods 2020; 9:foods9020184. [PMID: 32069984 PMCID: PMC7074152 DOI: 10.3390/foods9020184] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2020] [Revised: 02/02/2020] [Accepted: 02/11/2020] [Indexed: 02/05/2023] Open
Abstract
Medicinal plants contain various secondary metabolites. The present study analyzed the essential oil of buds from clove (Syzygium aromaticum L.; Family: Myrtaceae) using gas chromatography-mass spectrometry (GC-MS). GC-MS analysis showed the presence of six major phytoconstituents, such as eugenol (66.01%), caryophyllene (19.88%), caryophyllene oxide (5.80%), phenol, 2-methoxy-4-(2-propenyl)-acetate (4.55%), and humulene (3.75%). The effect of clove essential oils (CEO) at 0%, 1%, 2%, and 3% (w/w) on the mechanical and barrier properties of starch films was evaluated. The tensile strength (TS) and elongation (E) of films with clove essential oil were 6.25 ± 0.03 MPa and 5.67% ± 0.08%, respectively. The antioxidant activity of the films significantly increased the millet starch film and presented the lowest antioxidant activity (0.3%) at a 30 minute incubation for the control sample, while increasing CEO fraction in the starch film lead to an increase in antioxidant activity, and the 3% CEO combined film presented the highest antioxidant activity (15.96%) at 90 min incubation. This finding could be explained by the incorporation of clove oil containing antioxidant properties that significantly increased with the incorporation of CEO (p < 0.05). A zone of inhibition ranging from 16 to 27 mm in diameter was obtained when using a concentration of CEO ranging from 1% to 3%. We also observed the presence of an antimicrobial activity on several tested microorganism including Escherichia coli, Pseudomonas aeruginosa, Enterobacter sp, Bacillus cereus, Staphylococcus aureus, and Trichoderma fungi. Thus, the current study reveals the possibility of using a millet starch edible film as a preservation method.
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Affiliation(s)
- Alaa G. Al-Hashimi
- Food Science Department, College of Agriculture, University of Basrah, 61004 Basrah, Iraq;
| | - Altemimi B. Ammar
- Food Science Department, College of Agriculture, University of Basrah, 61004 Basrah, Iraq;
- Correspondence: ; Tel.: +96-477-356-40090
| | - Lakshmanan G.
- Central Research Laboratory, Meenakshi Academy of Higher Education and Research, 600078 Chennai, India;
| | - Francesco Cacciola
- Department of Biomedical and Dental Sciences and Morphofunctional Imaging, University of Messina, 98125 Messina, Italy;
| | - Naoufal Lakhssassi
- School of Agricultural Sciences, Southern Illinois University at Carbondale, Carbondale, IL 62901, USA;
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Jayawant ES, Beadle JD, Wilkening I, Raubo P, Shipman M, Notman R, Dixon AM. Impact of oxetane incorporation on the structure and stability of alpha-helical peptides. Phys Chem Chem Phys 2020; 22:25075-25083. [DOI: 10.1039/d0cp03818k] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Here we reveal the tolerance of oxetane modification within alpha helical peptides using a combined molecular dynamics and experimental biophysics approach.
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Affiliation(s)
| | | | - Ina Wilkening
- Department of Chemistry
- University of Warwick
- Coventry
- UK
| | - Piotr Raubo
- Medicinal Chemistry
- Research and Early Development
- Oncology R&D
- AstraZeneca
- Cambridge
| | | | | | - Ann M. Dixon
- Department of Chemistry
- University of Warwick
- Coventry
- UK
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Agyei‐Amponsah J, Macakova L, DeKock HL, Emmambux MN. Sensory, Tribological, and Rheological Profiling of “Clean Label” Starch–Lipid Complexes as Fat Replacers. STARCH-STARKE 2019. [DOI: 10.1002/star.201800340] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Joyce Agyei‐Amponsah
- Department of Consumer & Food SciencesUniversity of PretoriaPrivate Bag X20PretoriaHatfield0028South Africa
| | | | - Henrietta L. DeKock
- Department of Consumer & Food SciencesUniversity of PretoriaPrivate Bag X20PretoriaHatfield0028South Africa
| | - Mohammad N. Emmambux
- Department of Consumer & Food SciencesUniversity of PretoriaPrivate Bag X20PretoriaHatfield0028South Africa
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Cheng L, Zhu X, Hamaker BR, Zhang H, Campanella OH. Complexation process of amylose under different concentrations of linoleic acid using molecular dynamics simulation. Carbohydr Polym 2019; 216:157-166. [DOI: 10.1016/j.carbpol.2019.04.013] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2019] [Revised: 03/14/2019] [Accepted: 04/02/2019] [Indexed: 02/09/2023]
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Yang Y, Wang L, Li Y, Qian HF, Zhang H, Cheng Wu G, Qi XG. Investigation the molecular degradation, starch-lipid complexes formation and pasting properties of wheat starch in instant noodles during deep-frying treatment. Food Chem 2019; 283:287-293. [DOI: 10.1016/j.foodchem.2019.01.034] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 11/29/2018] [Accepted: 01/03/2019] [Indexed: 10/27/2022]
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Сhiral and Racemic Fields Concept for Understanding of the Homochirality Origin, Asymmetric Catalysis, Chiral Superstructure Formation from Achiral Molecules, and B-Z DNA Conformational Transition. Symmetry (Basel) 2019. [DOI: 10.3390/sym11050649] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
The four most important and well-studied phenomena of mirror symmetry breaking of molecules were analyzed for the first time in terms of available common features and regularities. Mirror symmetry breaking of the primary origin of biological homochirality requires the involvement of an external chiral inductor (environmental chirality). All reviewed mirror symmetry breaking phenomena were considered from that standpoint. A concept of chiral and racemic fields was highly helpful in this analysis. A chiral gravitational field in combination with a static magnetic field (Earth’s environmental conditions) may be regarded as a hypothetical long-term chiral inductor. Experimental evidences suggest a possible effect of the environmental chiral inductor as a chiral trigger on the mirror symmetry breaking effect. Also, this effect explains a conformational transition of the right-handed double DNA helix to the left-handed double DNA helix (B-Z DNA transition) as possible DNA damage.
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Chen G, Huang K, Miao M, Feng B, Campanella OH. Molecular Dynamics Simulation for Mechanism Elucidation of Food Processing and Safety: State of the Art. Compr Rev Food Sci Food Saf 2018; 18:243-263. [PMID: 33337012 DOI: 10.1111/1541-4337.12406] [Citation(s) in RCA: 40] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2018] [Revised: 10/07/2018] [Accepted: 10/10/2018] [Indexed: 12/14/2022]
Abstract
Molecular dynamics (MD) simulation is a useful technique to study the interaction between molecules and how they are affected by various processes and processing conditions. This review summarizes the application of MD simulations in food processing and safety, with an emphasis on the effects that emerging nonthermal technologies (for example, high hydrostatic pressure, pulsed electric field) have on the molecular and structural characteristics of foods and biomaterials. The advances and potential projection of MD simulations in the science and engineering aspects of food materials are discussed and focused on research work conducted to study the effects of emerging technologies on food components. It is expected by showing key case studies that it will stir novel developments as a valuable tool to study the effects of emerging food technologies on biomaterials. This review is useful to food researchers and the food industry, as well as researchers and practitioners working on flavor and nutraceutical encapsulations, dietary carbohydrate product developments, modified starches, protein engineering, and other novel food applications.
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Affiliation(s)
- Gang Chen
- School of Food Science and Technology, Henan Univ. of Technology, 100 Lianhua St., Zhengzhou 450001, Henan, P. R. China.,State Key Laboratory of Food Science and Technology, Jiangnan Univ., 1800 Lihu Ave., Wuxi, 214122, Jiangsu, P. R. China
| | - Kai Huang
- State Key Laboratory of Food Science and Technology, Jiangnan Univ., 1800 Lihu Ave., Wuxi, 214122, Jiangsu, P. R. China
| | - Ming Miao
- State Key Laboratory of Food Science and Technology, Jiangnan Univ., 1800 Lihu Ave., Wuxi, 214122, Jiangsu, P. R. China
| | - Biao Feng
- State Key Laboratory of Food Science and Technology, Jiangnan Univ., 1800 Lihu Ave., Wuxi, 214122, Jiangsu, P. R. China
| | - Osvaldo H Campanella
- State Key Laboratory of Food Science and Technology, Jiangnan Univ., 1800 Lihu Ave., Wuxi, 214122, Jiangsu, P. R. China.,Agricultural and Biological Engineering, and Dept. of Food Science, Whistler Center for Carbohydrate Research, Purdue Univ., 745 Agriculture Mall Dr., West Lafayette, IN, 47906, U.S.A
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Preparation and characterization of lotus seed starch-fatty acid complexes formed by microfluidization. J FOOD ENG 2018. [DOI: 10.1016/j.jfoodeng.2018.05.020] [Citation(s) in RCA: 41] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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48
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Cheng L, Feng T, Zhang B, Zhu X, Hamaker B, Zhang H, Campanella O. A molecular dynamics simulation study on the conformational stability of amylose-linoleic acid complex in water. Carbohydr Polym 2018; 196:56-65. [DOI: 10.1016/j.carbpol.2018.04.102] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/22/2018] [Revised: 04/21/2018] [Accepted: 04/26/2018] [Indexed: 10/17/2022]
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Yu Z, Wang YS, Chen HH, Li QQ, Wang Q. The gelatinization and retrogradation properties of wheat starch with the addition of stearic acid and sodium alginate. Food Hydrocoll 2018. [DOI: 10.1016/j.foodhyd.2018.02.041] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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50
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Silva FAR, Sales MJA, Paterno LG, Ghoul M, Chebil L, Maia ER. Molecular dynamics studies of amylose plasticized with Brazilian Cerrado oils: part I. POLIMEROS 2018. [DOI: 10.1590/0104-1428.09917] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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