Article
Polymer Science
Wei Zhang, Bei Cheng, Jiahui Li, Zaixi Shu, Pingping Wang, Xuefeng Zeng
Summary: The esterification of high-amylose Japonica rice starch with octenyl succinic anhydride (OSA) improved its functional properties, including decreased relative crystallinity, increased pasting viscosity, swelling power, emulsifying stability, and resistant starch (RS) content. The OSA-modified high-amylose starch could be used as an emulsifier, thickener, and fat replacer in food systems.
Article
Chemistry, Applied
Ya-ting Song, Jun-ru Qi, Xiao-quan Yang, Jin-song Liao, Zi-wei Liu, Cheng-wei Ruan
Summary: In this study, the modification of fiber acquired from citrus processing residue via esterification with octenyl succinic anhydride was reported. The esterification reaction significantly improved the hydration properties of the fiber, especially the water holding capacity. The OSA-CF showed higher crystallinity and slightly lower thermal stability compared to the original fiber, as well as a more folded and porous surface structure. Additionally, emulsion prepared by OSA-CF exhibited superior emulsifying abilities and smaller particle size.
FOOD HYDROCOLLOIDS
(2022)
Article
Polymer Science
Angela Myrra Puspita Dewi, Umar Santoso, Yudi Pranoto, Djagal W. Marseno
Summary: This study investigated the effect of moisture level on the physicochemical properties of OSA starch during heat moisture treatment (HMT) pretreatment. Results showed that a higher moisture content led to a decrease in crystallinity and gelatinization enthalpy, as well as surface damage and cracking of the starch granules. However, when HMT was performed with the right moisture content, OSA starch with the maximum DS value and reaction efficiency was obtained. The OSA esterification after HMT-25% MC resulted in the highest DS value (0.0086) and reaction efficiency (35.86%). The H25-OSA starch exhibited good water resistance and high cold water solubility. FTIR analysis confirmed the substitution of hydroxyl groups in HMT starch with carbonyl and carboxyl ester groups of OSA.
Article
Biochemistry & Molecular Biology
Yuxue Zheng, Huiling Zhang, Xiaobo Wei, Haitian Fang, Jinhu Tian
Summary: This study found that the encapsulation efficiency of curcumin can be improved by using OSA-ultrasonic treated rice starch, which also showed good stability during in vitro digestion. This research provides a way to develop new emulsion-based delivery systems.
Article
Biochemistry & Molecular Biology
Bozhi Tan, Yao Li, Xu Fei, Jing Tian, Longquan Xu, Yi Wang
Summary: The synthesis efficiency and side reactions of Octenyl succinic anhydride (OSA) starch can be improved by using lipase immobilized on polydopamine magnetic hydrogel microspheres (PMHM) as a biocatalyst. The prepared L-PMHM can be uniformly dispersed in starch slurry, leading to full contact between lipase and starch. L-PMHM exhibits better affinity to the substrate and achieves a higher degree of substitution compared to free lipase. Moreover, L-PHMM can maintain its activity after multiple reuses and can be easily separated from the product.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2022)
Article
Chemistry, Applied
Fan Cheng, Yongfeng Ai, Supratim Ghosh
Summary: In this study, different types of starch were modified to prepare oil-in-water emulsions and evaluate their emulsifying properties. The results showed that emulsifying properties and stability of the emulsions were enhanced with a higher degree of substitution of octenyl succinic anhydride. Additionally, the study elucidated the interrelationships among molecular structures, functional properties, and emulsifying ability of the starches.
FOOD HYDROCOLLOIDS
(2021)
Article
Biochemistry & Molecular Biology
Feng Cao, Shengmin Lu, Siew Young Quek
Summary: In this study, octenyl succinic anhydride modified porous starch (OSA-PS) with different degrees of substitution (DS) were successfully prepared. The results demonstrated that increasing DS can enhance the specific surface area, pore volume, and adsorption capacity of OSA-PS, while reducing its crystallinity and maximum thermal decomposition temperature. Furthermore, increasing DS led to a decrease in rapidly digestible starch and slowly digestible starch, but an increase in resistant starch. These findings provide an effective method for obtaining double-modified starch with high specific surface area and anti-digestibility, expanding its industrial application.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Polymer Science
Anil Kumar Siroha, Sneh Punia Bangar, Kawaljit Singh Sandhu, Jose Manuel Lorenzo, Monica Trif
Summary: The modification of pearl millet starches using octenyl succinic anhydride (OSA) at pH 8.0 resulted in changes in pasting properties, rheological properties, and in vitro digestibility of the starches. The modified starches showed increased pasting viscosities and decreased storage and loss moduli. The digestibility of the starches also changed, with a decrease in readily digestible starch content and an increase in resistant starch content.
Article
Chemistry, Applied
Shangyun Liang, Jing Du, Yan Hong, Li Cheng, Zhengbiao Gu, Zhaofeng Li, Caiming Li
Summary: In this study, nanoparticles composed of curcumin and octenyl succinic anhydride-modified debranched starch were prepared and characterized. The nanoparticles showed improved stability and sustained release of curcumin, making them potential delivery systems for curcumin.
FOOD HYDROCOLLOIDS
(2023)
Article
Agriculture, Multidisciplinary
Jinwei Wang, Jinglin Yu, Les Copeland, Shujun Wang
Summary: This study investigated the formation, structure, and digestibility of starch-lipid-protein complexes. The results showed that esterification of potato starch with octenyl succinic anhydride led to the formation of more stable complexes with monoglycerides and beta-lactoglobulin, which exhibited higher resistance to enzymatic digestion.
JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY
(2023)
Article
Food Science & Technology
Jie Lin, Shasha Fan, Yuyue Ruan, Dingtao Wu, Ting Yang, Yichen Hu, Wei Li, Liang Zou
Summary: In this study, Tartary buckwheat starch was modified with octenyl succinate anhydride (OS-TBS) to explore its potential for stabilizing Pickering nanoemulsions. The results showed that higher levels of octenyl succinate led to decreased amylose content and gelatinization temperature, while increasing solubility of OS-TBS. Compared to the original starch, OS-TBS exhibited higher surface hydrophobicity, uniform particle size, and improved emulsification stability. These findings suggest that OS-TBS could serve as an excellent stabilizer for nanoscale Pickering emulsions and expand the use of Tartary buckwheat starch in various industrial processes.
Article
Food Science & Technology
Lidong Wang, Xiaoqiang Li, Fei Gao, Shilin Liu, Yanchun Wu, Ying Liu, Dongjie Zhang
Summary: This study used jet milling technology to pretreat corn starch and improve the esterification efficiency of starch and OSA. Jet milling pretreatment resulted in broken starch granules and reduced relative crystallinity, enhancing the physical and chemical properties of OSA-modified corn starch and its emulsifying properties.
Article
Chemistry, Applied
Tian Xu, Chengchen Jiang, Qiwei Zhou, Zhengbiao Gu, Li Cheng, Yi Tong, Yan Hong
Summary: Preparation and characterization of colloidal complexes based on OSA-S and CS showed that the turbidities, yields, microstructure, wettability, and interfacial adsorption dynamics of the complexes were significantly influenced by the OSA-S/CS ratio and pH. The complexes exhibited liquid-like or gel structure, with intertwined core-shell microstructure and electrostatic interactions between COO- and NH3+ groups. The complexes prepared at r = 6:1 and pH 6.0 showed the most suitable wettability and interfacial adsorption dynamics.
CARBOHYDRATE POLYMERS
(2021)
Article
Food Science & Technology
Jinsong Zhang, Cheng Ran, Xiaofen Jiang, Jianpeng Dou
Summary: Esterification of sorghum starch with OSA can enhance its swelling power and water solubility, while also strengthening the stability of starch gels. Additionally, the modified sorghum starch can effectively stabilize O/W Pickering emulsions, with emulsion stability increasing with higher degrees of substitution.
LWT-FOOD SCIENCE AND TECHNOLOGY
(2021)
Article
Biochemistry & Molecular Biology
Lei Xu, Zhaoliang Bai, Jiaqing Feng, Ling He, Jinyun Ren, Shihao Chai, Xiaoming Chen
Summary: The impact of octenyl succinic anhydride (OSA) esterification on the properties of adlay starch was investigated. The degree of substitution (DS) increased significantly with increasing OSA quantity, leading to changes in the structural, thermal, pasting, and emulsifying characteristics of the starch. OSA esterification improved the functional properties of adlay starch, including increased viscosity, lower pasting temperature, and improved emulsion stability.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2023)
Article
Biochemistry & Molecular Biology
Wei-Han Hui, Yen-Lin Chen, Shu-Wei Chang
Summary: Crosslinking affects the mechanical behavior and tissue metabolism of collagen-based tissues. Aging and diabetes alter the crosslinking type and density, thus changing tissue properties. High-connectivity enzymatic crosslinking and advanced-glycation end-products result in uniform deformation under daily activity, while low-connectivity enzymatic crosslinking does not. High-connectivity model displays more sliding, while AGEs induce instability in structures near the binding sites.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Yao-Bin Ma, Xiao-Qiu Zhou, Wei-Dan Jiang, Pei Wu, Yang Liu, Shu-Wei Li, Ling Tang, Lu Zhang, Hai-Feng Mi, Lin Feng
Summary: Tea polyphenols (TPs) are an inexpensive feed additive that can protect the gill function of fish against Flavobacterium columnare (F. columnare) through various mechanisms, including suppression of oxidative stress, apoptosis, and inflammation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Yan-Jia Guo, Jing-Ru Pang, Yu Zhang, Zhong-Rui Li, Xiao-Lin Zi, Hong-Min Liu, Ning Wang, Li-Juan Zhao, Ya Gao, Bo Wang, Piet Herdewijn, Cheng-Yun Jin, Ying Liu, Yi-Chao Zheng
Summary: This study identifies the conjugation of NEDD8 to LSD1 and its impact on GC cells, revealing the significance of LSD1 neddylation in GC.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Review
Biochemistry & Molecular Biology
Geum-Jae Jeong, Fazlurrahman Khan, Nazia Tabassum, Young-Mog Kim
Summary: Vibrio species are motile gram-negative bacteria commonly found in aquatic environments. They can adapt to environmental fluctuations and develop protective mechanisms against host immune systems. Different types of sigma and anti-sigma factors play important roles in regulating gene expression and virulence in Vibrio species.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Zahra Mohammadbagheri, Behrooz Movahedi, Shaghayegh Saeedi, Abbas Rahmati
Summary: In this study, a reusable biobased composite hydrogel was successfully synthesized and used for the removal of Tl(I) from aqueous solutions. The hydrogel exhibited high adsorption capacity and thermal stability, and the adsorption process was found to be thermodynamically spontaneous. The results demonstrated that the hydrogel can be reused multiple times without significant loss of its adsorption capacity.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Iqra Batool, Muhammad Imran, Ayesha Anwar, Farhan Ahmed Khan, Afrah E. Mohammed, Ashwag Shami, Hafiz Iqbal
Summary: Enzyme immobilization on ZnO/SnO2 and ZnO/SnO2/SA nanocomposites was studied, and the catalytic and biochemical characteristics of the immobilized enzyme were investigated. The results showed that ZnO/SnO2 and ZnO/SnO2/SA nanostructures are suitable carriers for enzyme immobilization.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Elias Mosaffa, Dhruvi Patel, Nasim Amiri Ramsheh, Rishikumar Indravadan Patel, Atanu Banerjee, Hossein Ghafuri
Summary: In this study, a unique 3D bead structure of adsorbent, composed of bacterial cellulose microfilaments reinforced chitosan adorned with melamine 2D plates, was synthesized for anionic dye removal. The adsorbent showed high specific surface area and abundant functional groups, resulting in exceptional adsorption capacity. The characteristics and optimal conditions of the adsorbent were assessed and analyzed.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Carolina Gismene, Jorge Enrique Hernandez Gonzalez, Marilia de Freitas Calmon, Andrey Fabricio Ziem Nascimento, Angela Rocio Nino Santisteban, Felipe Antunes Calil, Alana Della Torre da Silva, Paula Rahal, Rejane Maira Goes, Raghuvir Krishnaswamy Arni, Ricardo Barros Mariutti
Summary: Mammaliicoccus sciuri, a bacterium of clinical and veterinary relevance, expresses the virulence factor Exfoliative Toxin C (ExhC), which binds specifically to desmoglein-1 (Dsg1) and plays a role in tissue integrity. This study investigates the necrotic activity of ExhC and identifies a variant lacking necrotic potential but retaining enzymatic activity through mutagenesis experiments and crystal structure determination.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Bibhas K. Bhunia, Ashutosh Bandyopadhyay, Souradeep Dey, Biman B. Mandal
Summary: Intervertebral disc degeneration is a major cause of chronic low back pain and disability. Researchers have developed a bioactive silk-based hybrid hydrogel system functionalized with decellularized human Wharton's jelly extracellular matrix as bioactive cues. The hydrogels mimic the rheological and mechanical properties of the native nucleus pulposus tissue and support cell viability, proliferation, and tissue maturation.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Qun Zhang, Yonggan Yan, Zhao Li, Jing Du, Kai Zhang, Liguo Zhang, Ting Wang, Alberto Bianco, Shaohua Ge, Baojin Ma
Summary: A new crosslinking strategy has been devised to construct injectable sodium alginate hydrogels, which can be regulated for injectability and have great potential in biomedical applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Seong Eun Hong, Ji-Soo Lee, Hyeon Gyu Lee
Summary: The potential of multi-layer nanoemulsions for improving the cellular uptake, antioxidant activity, and in vitro bioaccessibility of alpha-tocopherol was examined. The results showed that the multi-layer nanoemulsions significantly enhanced the cellular uptake and antioxidant activity of alpha-tocopherol compared to free coumarin 6. Furthermore, the use of chitosan and dextran sulfate as wall materials in the multi-layer nanoemulsions led to even higher cellular uptake, in vitro bioaccessibility, and antioxidant activity of alpha-tocopherol.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Jingjing Yu, Yanhui Zhang, Ruoning Zhang, Yanxiang Gao, Like Mao
Summary: High internal phase emulsions (HIPEs) based on beeswax (BW) oleogels and octenyl succinic acid starch (OSA starch) were prepared by a simple one-step method. The results showed that oleogelation improved the stability and encapsulation capability of the HIPEs, which is significant for the development of novel healthy food.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Review
Biochemistry & Molecular Biology
Bi-Feng Yao, Xiu-Ju Luo, Jun Peng
Summary: The balanced and continuous fission and fusion of mitochondria, regulated by OPA1, are important for maintaining mitochondrial dynamics in cardiovascular disorders. Understanding the role of OPA1 in mitochondrial fusion can provide insights into the pathogenesis of cardiovascular diseases.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Review
Biochemistry & Molecular Biology
Gokul Paramasivam, Anandhavelu Sanmugam, Vishnu Vardhan Palem, Murugan Sevanan, Ananda Babu Sairam, Nachiappan Nachiappan, Buhyun Youn, Jung Sub Lee, Muthuchamy Nallal, Kang Hyun Park
Summary: Nanomaterials are being used to deliver therapeutic agents in living systems. Different nanotechnological applications such as immunosensors, immune assays, and drug delivery are being implemented using nanotechnology. Genomics plays a crucial role in selecting appropriate drugs for personalized cancer therapy. It helps in analyzing gene and protein expression, disease classification, and designing disease models. Delivering drugs to specific areas using nanoparticles is a challenging issue.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Biochemistry & Molecular Biology
Jing Li, Wei Wang, Han Wu, Feng Peng, Hui Gao, Ying Guan
Summary: In this study, CMH-based CPF films were prepared and their thermal and barrier properties were successfully regulated. The tensile strength and water vapor barrier property of CPF films were significantly improved, making them promising for food packaging applications.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)