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Kapoor DU, Sharma H, Maheshwari R, Pareek A, Gaur M, Prajapati BG, Castro GR, Thanawuth K, Suttiruengwong S, Sriamornsak P. Konjac glucomannan: A comprehensive review of its extraction, health benefits, and pharmaceutical applications. Carbohydr Polym 2024; 339:122266. [PMID: 38823930 DOI: 10.1016/j.carbpol.2024.122266] [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: 02/26/2024] [Revised: 04/29/2024] [Accepted: 05/11/2024] [Indexed: 06/03/2024]
Abstract
Konjac glucomannan (KG) is a dietary fiber hydrocolloid derived from Amorphophallus konjac tubers and is widely utilized as a food additive and dietary supplement. As a health-conscious choice, purified KG, along with konjac flour and KG-infused diets, have gained widespread acceptance in Asian and European markets. An overview of the chemical composition and structure of KG is given in this review, along with thorough explanations of the processes used in its extraction, production, and purification. KG has been shown to promote health by reducing glucose, cholesterol, triglyceride levels, and blood pressure, thereby offering significant weight loss advantages. Furthermore, this review delves into the extensive health benefits and pharmaceutical applications of KG and its derivatives, emphasizing its prebiotic, anti-inflammatory, and antitumor activities. This study highlights how these natural polysaccharides can positively influence health, underscoring their potential in various biomedical applications.
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Affiliation(s)
| | - Himanshu Sharma
- Teerthanker Mahaveer College of Pharmacy, Teerthanker Mahaveer University, Moradabad 244001, India
| | - Rahul Maheshwari
- School of Pharmacy and Technology Management, SVKM's Narsee Monjee Institute of Management Studies (NMIMS), Deemed to be University, Hyderabad 509301, India
| | - Ashutosh Pareek
- Department of Pharmacy, Banasthali Vidyapith, Banasthali 304022, India
| | - Mansi Gaur
- Rajasthan Pharmacy College, Rajasthan University of Health Sciences, Jaipur 302026, India
| | - Bhupendra G Prajapati
- Shree S. K. Patel College of Pharmaceutical Education and Research, Ganpat University, Mehsana 384012, India; Department of Industrial Pharmacy, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand.
| | - Guillermo R Castro
- Nanomedicine Research Unit, Center for Natural and Human Sciences, Federal University of ABC, Santo André, Sao Paulo 09210-580, Brazil
| | - Kasitpong Thanawuth
- College of Pharmacy, Rangsit University, Pathum Thani 12000, Thailand; Department of Industrial Pharmacy, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Supakij Suttiruengwong
- Sustainable Materials Laboratory, Department of Materials Science and Engineering, Faculty of Engineering and Industrial Technology, Silpakorn University, Nakhon Pathom 73000, Thailand
| | - Pornsak Sriamornsak
- Department of Industrial Pharmacy, Faculty of Pharmacy, Silpakorn University, Nakhon Pathom 73000, Thailand; Academy of Science, The Royal Society of Thailand, Bangkok 10300, Thailand; Faculty of Pharmaceutical Sciences, Chulalongkorn University, Bangkok 10330, Thailand; Center for Global Health Research, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, Tamil Nadu 602105, India.
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Zheng Y, Liu Q, Luo H, Zheng J, Li W. Effect of pretreatment with electron beam irradiation on the deacetylation efficiency of konjac glucomannan and its structural, physicochemical and gel properties. Int J Biol Macromol 2024; 276:133887. [PMID: 39019354 DOI: 10.1016/j.ijbiomac.2024.133887] [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: 01/09/2024] [Revised: 05/17/2024] [Accepted: 07/13/2024] [Indexed: 07/19/2024]
Abstract
Due to its emulsifying and thickening properties, konjac glucomannan (KGM) is widely used in the food, medicine, and materials industries. Nevertheless, its high viscosity and significant water absorption limit its application range. Therefore, electron beam (e-beam) irradiation pretreatment was carried out to improve the deacetylation efficiency of KGM, and the physicochemical and gel properties of KGM were investigated. The results show that e-beam irradiation and deacetylation decrease the water absorption, solubility, transparency, molecular weight, and viscosity of KGM. Conversely, the moisture content, thermal stability, and water-binding capacity increase. FTIR and X-ray diffraction analysis revealed no significant changes in the chemical and crystalline structure of KGM before and after modification. However, modification weakens the intermolecular interaction of KGM hydrosols, which affects their rheology. Furthermore, deacetylation improves the mechanical properties and water retention capacity of KGM gels. Overall, the e-beam irradiation pretreatment provides a method to increase the efficiency of KGM deacetylation and improve the physical and chemical properties of KGM, thus expanding its potential applications in the food and chemical industries, among others.
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Affiliation(s)
- Yue Zheng
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Qing Liu
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Haiyu Luo
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Jiayu Zheng
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China
| | - Wenhao Li
- College of Food Science and Engineering, Northwest A&F University, Yangling 712100, Shaanxi, China.
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Zhang Y, Zhao Y, Yang W, Song G, Zhong P, Ren Y, Zhong G. Structural complexity of Konjac glucomannan and its derivatives governs the diversity and outputs of gut microbiota. Carbohydr Polym 2022; 292:119639. [DOI: 10.1016/j.carbpol.2022.119639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 05/11/2022] [Accepted: 05/16/2022] [Indexed: 11/02/2022]
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Li Y, Liu H, Xie Y, Shabani KI, Liu X. Preparation, characterization and physicochemical properties of Konjac glucomannan depolymerized by ozone assisted with microwave treatment. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106878] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Bhaturiwala R, Bagban M, Singh TA, Modi H. Partial purification and application of β-mannanase for the preparation of low molecular weight galacto and glucomannan. BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY 2021. [DOI: 10.1016/j.bcab.2021.102155] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Biocompatible Herder for rapid oil spill treatment over a wide temperature range. J Loss Prev Process Ind 2019. [DOI: 10.1016/j.jlp.2019.103948] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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Cui T, Wu T, Liu R, Sui W, Wang S, Zhang M. Effect of Degree of Konjac Glucomannan Enzymatic Hydrolysis on the Physicochemical Characteristic of Gluten and Dough. ACS OMEGA 2019; 4:9654-9663. [PMID: 31460056 PMCID: PMC6647942 DOI: 10.1021/acsomega.9b00061] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 03/26/2019] [Indexed: 06/10/2023]
Abstract
Influences of different enzymatic hydrolysis degrees of konjac glucomannan (KGM) with various addition proportions on the structural characteristic of gluten protein and dough properties were evaluated. Results revealed that addition of KGM decreases the free sulfhydryl and freezable water content of dough, and KGM with different enzymatic hydrolysis degrees had more beneficial effects on strengthening the gluten structure by the raised molecular weight of gluten proteins and the increased disulfide bonds and β-sheet content, especially KGM with 15 min enzymatic hydrolysis treatment (KGM II). Besides, microstructure observation and thermal analysis results illustrated that addition of KGM promotes gluten cross-linking and improves the thermal stability of the gluten network structure. Dough possessed better elasticity, as well as tensile and texture properties with the addition of KGM than the control sample. And the KGM with 15 min enzymatic hydrolysis showed the most positive effect on dough quality than others, and 2.0% addition proportion is the most acceptable.
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Affiliation(s)
- Tingting Cui
- State Key Laboratory
of Food Nutrition and Safety, Tianjin University
of Science & Technology, Tianjin 300457, China
| | - Tao Wu
- State Key Laboratory
of Food Nutrition and Safety, Tianjin University
of Science & Technology, Tianjin 300457, China
- Engineering Research Center of Food Biotechnology, Ministry
of Education, Tianjin 300457, China
| | - Rui Liu
- State Key Laboratory
of Food Nutrition and Safety, Tianjin University
of Science & Technology, Tianjin 300457, China
- Engineering Research Center of Food Biotechnology, Ministry
of Education, Tianjin 300457, China
- Tianjin Food Safety
& Low Carbon Manufacturing Collaborative Innovation Center, Tianjin 300457, China
| | - Wenjie Sui
- State Key Laboratory
of Food Nutrition and Safety, Tianjin University
of Science & Technology, Tianjin 300457, China
| | - Shuai Wang
- State Key Laboratory
of Food Nutrition and Safety, Tianjin University
of Science & Technology, Tianjin 300457, China
| | - Min Zhang
- State Key Laboratory
of Food Nutrition and Safety, Tianjin University
of Science & Technology, Tianjin 300457, China
- Engineering Research Center of Food Biotechnology, Ministry
of Education, Tianjin 300457, China
- Tianjin Food Safety
& Low Carbon Manufacturing Collaborative Innovation Center, Tianjin 300457, China
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Yanuriati A, Marseno DW, Rochmadi, Harmayani E. Characteristics of glucomannan isolated from fresh tuber of Porang (Amorphophallus muelleri Blume). Carbohydr Polym 2016; 156:56-63. [PMID: 27842852 DOI: 10.1016/j.carbpol.2016.08.080] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 08/15/2016] [Accepted: 08/25/2016] [Indexed: 11/26/2022]
Abstract
Porang is a potential source of glucomannan. This research objective was to find a direct glucomannan isolation method from fresh porang corm to produce high purity glucomannan. Two isolation methods were performed. In first method, sample was water dissolved using Al2(SO4)3 as flocculant for 15 (AA15) or 30 (AA30) minutes with purification. In second method, sample was repeatedly milled using ethanol as solvent and filtered for 5 (EtOH5) or 7 (EtOH7) times without purification. The characteristics of obtained glucomannan were compared to those of commercial porang flour (CPF) and purified konjac glucomannan (PKG). High purity (90.98%), viscosity (27,940 cps) and transparency (57.74%) of amorphous glucomannan were isolated by EtOH7. Ash and protein level significantly reduced to 0.57% and 0.31%, respectively, with no starch content. Water holding capacity (WHC) of EtOH7 glucomannan significantly enhanced, whereas its solubility was lower than those of PKG due to its ungrounded native granular form.
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Affiliation(s)
- Anny Yanuriati
- Department of Agricultural Technology, Sriwijaya University, Jl. Palembang Prabumulih Km. 32, Inderalaya, Ogan Ilir 30662, South Sumatra, Indonesia; Faculty of Agricultural Technology, Gadjah Mada University, Jl. Flora No.1, Yogyakarta 55281, Indonesia.
| | - Djagal Wiseso Marseno
- Faculty of Agricultural Technology, Gadjah Mada University, Jl. Flora No.1, Yogyakarta 55281, Indonesia
| | - Rochmadi
- Chemical Engineering Department, Faculty of Engineering, Gadjah Mada University, Jl. Grafika No. 2, Yogyakarta 55281, Indonesia
| | - Eni Harmayani
- Faculty of Agricultural Technology, Gadjah Mada University, Jl. Flora No.1, Yogyakarta 55281, Indonesia
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Pan T, Peng S, Xu Z, Xiong B, Wen C, Yao M, Pang J. Synergetic degradation of konjac glucomannan by γ-ray irradiation and hydrogen peroxide. Carbohydr Polym 2013; 93:761-7. [DOI: 10.1016/j.carbpol.2012.11.075] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2012] [Revised: 11/16/2012] [Accepted: 11/26/2012] [Indexed: 11/25/2022]
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