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Afifah N, Sarifudin A, Purwanto WW, Krisanti EA, Mulia K. Glucomannan isolation from porang (Amorphophallus muelleri Blume) flour using natural deep eutectic solvents and ethanol: A comparative study. Food Chem 2024; 453:139610. [PMID: 38761726 DOI: 10.1016/j.foodchem.2024.139610] [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: 12/10/2023] [Revised: 05/06/2024] [Accepted: 05/07/2024] [Indexed: 05/20/2024]
Abstract
Ethanol is a common solvent to isolate glucomannan from porang (Amorphophallus muelleri Blume) flour (NPF). This study investigated the use of natural deep eutectic solvents (NADESs) in glucomannan isolation from NPF. NADESs formed by the hydrogen bond acceptors (choline chloride and betaine) and the hydrogen bond donors (glycerol, 1,2-propanediol, formic acid, and acetic acid) in varying molar ratios of 1:2, 1:3, and 1:4 were characterized to optimize glucomannan isolation. The results showed that higher molar ratios of NADES tended to yield porang glucomannan flour (PGF) with higher glucomannan content and viscosity. The gel of PGF exhibited pseudoplastic behavior. The FTIR spectra indicated that betaine-based NADES removed the acetyl groups from glucomannan chains. The PGF obtained from NADESs with a molar ratio of 1:4 was comparable to those obtained from ethanol with a glucomannan content of 87.34 %-93.28 % and a weight-average molecular weight of 9.12 × 105-1.20 × 106 g/mol.
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Affiliation(s)
- Nok Afifah
- Department of Chemical Engineering, Universitas Indonesia, Depok 16424, Indonesia; Research Center for Appropriate Technology, National Research and Innovation Agency, Subang 41213, Indonesia
| | - Achmat Sarifudin
- Research Center for Appropriate Technology, National Research and Innovation Agency, Subang 41213, Indonesia
| | | | - Elsa Anisa Krisanti
- Department of Chemical Engineering, Universitas Indonesia, Depok 16424, Indonesia
| | - Kamarza Mulia
- Department of Chemical Engineering, Universitas Indonesia, Depok 16424, Indonesia.
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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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Chen K, Jiang J, Tian R, Kuang Y, Wu K, Xiao M, Liu Y, Qian H, Jiang F. Properties of konjac glucomannan/curdlan-based emulsion films incorporating camellia oil and the preservation effect as coatings on 'Kyoho' grapes. Int J Biol Macromol 2024; 258:128836. [PMID: 38104683 DOI: 10.1016/j.ijbiomac.2023.128836] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 12/10/2023] [Accepted: 12/14/2023] [Indexed: 12/19/2023]
Abstract
The strategy of emulsion coating was used for grape preservation. Camellia oil (CO) was incorporated with KGM/curdlan (KC) to fabricate KC-CO emulsion systems. KC-CO emulsions were analyzed by droplet size distribution and confocal laser scanning microscopy (CLSM), and KC-CO films were investigated by scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), mechanical properties, dissolution, gas permeability, water contact angle (WCA). KC-CO coating was used for preservation of 'Kyoho' grapes. The results indicated that the addition of CO had a positive effect on KC system. CO could form a uniform emulsion with KC, and the droplets were evenly dispersed in the KC matrix. KC-CO films displayed a continuous microstructure, and elongation at break (EAB) was improved, while tensile strength decreased. The dissolution, water vapor permeability (WVP), and WCA were significantly enhanced, while the permeability of oxygen and carbon dioxide exhibited no advantage compared with KC film. KC-CO-10 possessed optimal properties and was selected as an emulsion coating for preservation. The results suggested that KC-CO-10 significantly maintained the appearance, total solid and acid content of 'Kyoho' grapes, and delayed the weight loss and firmness decrease. This study contributed to the understanding of polysaccharide-lipid emulsion system and the applications.
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Affiliation(s)
- Kai Chen
- Cooperative Innovation Center of Industrial Fermentation, Ministry of Education & Hubei Province, Hubei University of Technology, Wuhan 430068, PR China; Key Laboratory of Fermentation Engineering (Ministry of Education), Hubei University of Technology, Wuhan 430068, PR China; National "111" Center for Cellular Regulation and Molecular Pharmaceutics, Key Laboratory of Fermentation Engineering, Ministry of Education, Hubei University of Technology, Wuhan 430068, PR China
| | - Jun Jiang
- Cooperative Innovation Center of Industrial Fermentation, Ministry of Education & Hubei Province, Hubei University of Technology, Wuhan 430068, PR China
| | - Runmiao Tian
- Cooperative Innovation Center of Industrial Fermentation, Ministry of Education & Hubei Province, Hubei University of Technology, Wuhan 430068, PR China
| | - Ying Kuang
- Cooperative Innovation Center of Industrial Fermentation, Ministry of Education & Hubei Province, Hubei University of Technology, Wuhan 430068, PR China
| | - Kao Wu
- Cooperative Innovation Center of Industrial Fermentation, Ministry of Education & Hubei Province, Hubei University of Technology, Wuhan 430068, PR China
| | - Man Xiao
- Cooperative Innovation Center of Industrial Fermentation, Ministry of Education & Hubei Province, Hubei University of Technology, Wuhan 430068, PR China
| | - Yi Liu
- Cooperative Innovation Center of Industrial Fermentation, Ministry of Education & Hubei Province, Hubei University of Technology, Wuhan 430068, PR China
| | - Hong Qian
- Cooperative Innovation Center of Industrial Fermentation, Ministry of Education & Hubei Province, Hubei University of Technology, Wuhan 430068, PR China; College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, PR China
| | - Fatang Jiang
- Cooperative Innovation Center of Industrial Fermentation, Ministry of Education & Hubei Province, Hubei University of Technology, Wuhan 430068, PR China; Faculty of Engineering, University of Nottingham, Nottingham NG7 2RD, UK.
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Characterizations of konjac glucomannan/curdlan edible coatings and the preservation effect on cherry tomatoes. Int J Biol Macromol 2023; 232:123359. [PMID: 36693611 DOI: 10.1016/j.ijbiomac.2023.123359] [Citation(s) in RCA: 23] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/19/2022] [Revised: 01/12/2023] [Accepted: 01/17/2023] [Indexed: 01/22/2023]
Abstract
In this study, konjac glucomannan (KGM) and curdlan were used to fabricate composite coating (KC). The coating solutions were investigated using a rheological method, and the coatings were characterized by water solubility tests, water vapor permeability (WVP), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), and thermogravimetric analysis (TGA). The preservation effect of KC coating on cherry tomatoes stored at room temperature was determined. Results indicated that the curdlan addition can adjust the hydrophilicity/hydrophobicity of KGM coatings. Curdlan addition enhanced intermolecular entanglement and film-forming property. Increasing curdlan content in KC coatings significantly decreased the moisture content, dissolution and swelling ratio, and WVP. The KGM-curdlan composites behaved as high-performance coatings with good compatibility and uniformity. The K3C2 coating showed the best uniformity, water barrier, and thermal stability. The application of K3C2 coating significantly reduced the weight loss, decay loss, and delayed the decreases of firmness, soluble solids, total acid, and VC contents of cherry tomatoes. The KGM/curdlan edible coatings have promising potential for prolonging the shelf life of cherry tomatoes and applications in fruits preservation in the future.
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Konjac Glucomannan: An Emerging Specialty Medical Food to Aid in the Treatment of Type 2 Diabetes Mellitus. Foods 2023; 12:foods12020363. [PMID: 36673456 PMCID: PMC9858196 DOI: 10.3390/foods12020363] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 01/06/2023] [Accepted: 01/09/2023] [Indexed: 01/14/2023] Open
Abstract
There are many factors causing T2DM; thus, it is difficult to prevent and cure it with conventional treatment. In order to realize the continuous intervention of T2DM, the treatment strategy of combining diet therapy and traditional medication came into being. As a natural product with the concept of being healthy, konjac flour and its derivatives are popular with the public. Its main component, Konjac glucomannan (KGM), can not only be applied as a food additive, which greatly improves the taste and flavor of food and extends the shelf life of food but also occupies an important role in T2DM. KGM can extend gastric emptying time, increase satiety, and promote liver glycogen synthesis, and also has the potential to improve intestinal flora and the metabolic system through a variety of molecular pathways in order to positively regulate oxidative stress and immune inflammation, and protect the liver and kidneys. In order to establish the theoretical justification for the adjunctive treatment of T2DM, we have outlined the physicochemical features of KGM in this article, emphasizing the advantages of KGM as a meal for special medical purposes of T2DM.
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Zou X, Xu X, Chao Z, Jiang X, Zheng L, Jiang B. Properties of plant-derived soluble dietary fibers for fiber-enriched foods: A comparative evaluation. Int J Biol Macromol 2022; 223:1196-1207. [PMID: 36347374 DOI: 10.1016/j.ijbiomac.2022.11.008] [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: 08/28/2022] [Revised: 10/31/2022] [Accepted: 11/01/2022] [Indexed: 11/08/2022]
Abstract
Plant-derived soluble dietary fibers (SDF) have many important physiological functions and the applications of SDF vary based on their properties, which are worth further investigating for fiber-enriched food production. In this study, SDF derived from konjac, apple, chicory, flaxseed, orange, psyllium seed, soybean and oat were purified, and their structural, physicochemical and functional properties were systematically evaluated. Monosaccharide composition analysis showed that these SDF belonged to heteropolysaccharides, of which konjac, psyllium seed, apple, soybean and oat SDF were glucomannan, arabinoxylan, pectin, arabinogalactan and glucan, respectively. The molecular weight of konjac glucomannan (KGM, 5.22 × 106 Da) was the highest, and inulin, soybean arabinogalactan (SA) and oat glucan (OG) had higher water solubility. Moreover, KGM, apple pectin (AP), flaxseed SDF (FS) and psyllium seed arabinoxylan (PA) exhibited better water-holding capacity, swelling capacity, emulsifying activity and stability. Rheological studies and texture profile analysis suggested that KGM had the best viscosity and gelation ability. In addition, AP and orange SDF (OS) showed better α-amylase inhibitory activity, while OS and KGM had higher pancreatic lipase inhibitory activity. Also, KGM and FS displayed fine cholesterol absorption capacity. To summary, these functional properties illustrated the feasibility of SDF to regulate blood sugar and blood lipid levels.
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Affiliation(s)
- Xiaoqiang Zou
- State Key Laboratory of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China.
| | - Xiuli Xu
- State Key Laboratory of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Zhonghao Chao
- State Key Laboratory of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Xuan Jiang
- State Key Laboratory of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Lei Zheng
- State Key Laboratory of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
| | - Bangzhi Jiang
- State Key Laboratory of Food Science and Technology, National Engineering Research Center for Functional Food, National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, 1800 Lihu Road, Wuxi 214122, Jiangsu, China
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Li Z, Xiong Y, Wang Y, Zhang Y, Luo Y. Low density lipoprotein-pectin complexes stabilized high internal phase pickering emulsions: The effects of pH conditions and mass ratios. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.108004] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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8
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Aanisah N, Wardhana YW, Chaerunisaa AY, Budiman A. Review on Modification of Glucomannan as an Excipient in Solid Dosage Forms. Polymers (Basel) 2022; 14:2550. [PMID: 35808596 PMCID: PMC9269564 DOI: 10.3390/polym14132550] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2022] [Revised: 06/19/2022] [Accepted: 06/21/2022] [Indexed: 01/09/2023] Open
Abstract
Glucomannan (GM)-a polysaccharide generally extracted from the tuber of Amorphophallus konjac-has great potential as a filler-binder in direct compression, disintegrant in tablets, or gelling agent due to its strong hydrophilicity and extremely high viscosity. However, it has poor water resistance and low mechanical strength when used as an excipient in solid form. Several physical and chemical modifications have been carried out to improve these drawbacks. Chemical modification affects the characteristics of GM based on the DS. Carboxymethylation improves GM functionality by modifying its solubility and viscosity, which in turn allows it to bind water more efficiently and thus improve its elongation and gel homogeneity. Meanwhile, physical modification enhances functionality through combination with other excipients to improve mechanical properties and modify swelling ability and drug release from the matrix. This review discusses extraction of GM and its modification to enhance its applicability as an excipient in solid form. Modified GM is a novel excipient applicable in the pharmaceutical industry for direct compression, as a tablet disintegrant, a film-forming agent, and for encapsulation of macromolecular compounds or drug carriers for controlled release.
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Affiliation(s)
- Nuur Aanisah
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor 45363, Indonesia; (N.A.); (A.Y.C.); (A.B.)
- Department of Pharmacy, Faculty of Mathematics and Natural Sciences, Tadulako University, Palu 94118, Indonesia
| | - Yoga W. Wardhana
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor 45363, Indonesia; (N.A.); (A.Y.C.); (A.B.)
- Study Center Development of Pharmaceutical Preparations, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Anis Y. Chaerunisaa
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor 45363, Indonesia; (N.A.); (A.Y.C.); (A.B.)
- Study Center Development of Pharmaceutical Preparations, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor 45363, Indonesia
| | - Arif Budiman
- Department of Pharmaceutics and Pharmaceutical Technology, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor 45363, Indonesia; (N.A.); (A.Y.C.); (A.B.)
- Study Center Development of Pharmaceutical Preparations, Faculty of Pharmacy, Universitas Padjadjaran, Jatinangor 45363, Indonesia
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9
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High internal phase Pickering emulsions stabilized by tannic acid-ovalbumin complexes: Interfacial property and stability. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2021.107332] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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10
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Kugimiya M, Ohno F. Surface Deposits on Glucomannan Granules in Polished Konjac Flours. J JPN SOC FOOD SCI 2021. [DOI: 10.3136/nskkk.68.360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
| | - Fumiko Ohno
- Former Kurashiki Sakuyo University, The Faculty of Food Culture
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11
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Martínez-Padilla LP, Sosa-Herrera MG, Osnaya-Becerril M. Effect of the konjac glucomannan concentration on the rheological behaviour and stability of sodium caseinate oil-in-water emulsions. Int Dairy J 2021. [DOI: 10.1016/j.idairyj.2021.104993] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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12
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Adetunji CO, Akram M, Michael OS, Shahzad K, Ayeni AE, Hasan S, Adetunji JB, Hasan SM, Inamuddin, Olaniyan M, Muhibi MA. Polysaccharides Derived From Natural Sources: A Panacea to Health and Nutritional Challenges. POLYSACCHARIDES 2021. [DOI: 10.1002/9781119711414.ch32] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Hu L, Zhu X, Shang L, Teng Y, Li J, Li B. Inhibit the intrinsic bacteria from konjac glucomannan hydrosol for its improved viscosity stability. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2020.106197] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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14
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Hu L, Wang S, Shang L, Teng Y, Li J, Li B. A novel strategy to maintain the long-term viscosity stability of konjac glucomannan hydrosol by using zinc ion. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2020.106000] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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Ren B, Xie H, Guo L, Zhong K, Huang Y, Gao H. Effect of Konjac Glucomannan on Sensory, Physical and Thermal Properties of Mochi. INTERNATIONAL JOURNAL OF FOOD ENGINEERING 2020. [DOI: 10.1515/ijfe-2019-0227] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Abstract
AbstractMochi is a popular snack in Asia, but few studies explored applications of konjac glucomannan (KGM) combined with mochi. The textural and thermal properties, sensory and microstructural changes were measured from mochi, which performed mainly from glutinous rice flour and KGM blends of which KGM shared 1–5 %. About 1–3 % KGM substitution could improve sensory qualities of mochi. The color of mochi with different KGM concentration could be distinguished by the naked eye. The variants with 4–5 % KGM concentration exhibited high hardness, stickiness of texture parameters, and obvious changes in temperature peak of thermodynamic parameters. The reticular gelatinized microstructures of mochi showed increased aperture of cavities with enhanced matrix surrounded. These changes could be due to high water binding capacity of KGM. In general, 3 % KGM concentration could lead to desirable sensory and textural properties of mochi, indicating a potential of KGM for widespread usage in glutinous rice starch-based foods industry.
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Affiliation(s)
- Bingxi Ren
- College of Biomass Science and Engineering and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, Sichuan Province610065, China
| | - Hongchen Xie
- West China School of Public Health, Sichuan University, Chengdu, Sichuan Province 610065, China
| | - Lulu Guo
- West China School of Public Health, Sichuan University, Chengdu, Sichuan Province 610065, China
| | - Kai Zhong
- College of Biomass Science and Engineering and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, Sichuan Province610065, China
| | - Yina Huang
- West China School of Public Health, Sichuan University, Chengdu, Sichuan Province 610065, China
| | - Hong Gao
- College of Biomass Science and Engineering and Healthy Food Evaluation Research Center, Sichuan University, Chengdu, Sichuan Province610065, China
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16
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Chemical and physical characterization of Konjac glucomannan-based powders by FTIR and 13C MAS NMR. POWDER TECHNOL 2020. [DOI: 10.1016/j.powtec.2019.11.071] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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17
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Liu F, Chang W, Chen M, Xu F, Ma J, Zhong F. Film-forming properties of guar gum, tara gum and locust bean gum. Food Hydrocoll 2020. [DOI: 10.1016/j.foodhyd.2019.03.028] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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18
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Wardhani DH, Kumoro AC, Hakiim A, Aryanti N, Cahyono H. Kinetic Modeling Studies of Enzymatic Purification of Glucomannan. CHEMISTRY & CHEMICAL TECHNOLOGY 2019. [DOI: 10.23939/chcht13.03.384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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19
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Zhu B, Xin C, Li J, Li B. Ultrasonic Degradation of Konjac Glucomannan and the Effect of Freezing Combined with Alkali Treatment on Their Rheological Profiles. Molecules 2019; 24:molecules24101860. [PMID: 31091822 PMCID: PMC6572268 DOI: 10.3390/molecules24101860] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2019] [Revised: 05/04/2019] [Accepted: 05/09/2019] [Indexed: 11/16/2022] Open
Abstract
The effect of freezing combined with alkali treatment on physicochemical property of konjac glucomannan (KGM) with different molecular weight was investigated in this work. The properties and structure of degraded KGM was characterized by means of intrinsic viscosity measurement, atomic force microscope (AFM) and Fourier transformation infrared (FT-IR). The results suggested that the intrinsic viscosity of KGM solution gradually decreased during the ultrasonic treatment. The AFM observation indicated that KGM with lower viscosity average molecular weight had smaller height and lateral diameter of molecules. The main repeating units of the KGM chain could not be destroyed no matter how long the KGM was sonicated. Rheometrical studies revealed that with increasing alkali concentration from 0% to 0.36%, both viscosities and shear stress of deacetylated konjac glucomannan (Da-KGM) system were increased and moduli G' were substantially higher in either freezing or unfreezing samples. Da-KGM system performed a solid-like behavior (G' > G'') along the frequency range after freezing treatment. With increasing sonication time, both viscosity and shear stress of unfreezing samples were decreased while had an inverse effect for freezing treated samples. The modulus G' and G'' declined for unfreezing samples but rise significantly for freezing treated samples with increase of sonication time.
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Affiliation(s)
- Bo Zhu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China.
| | - Chen Xin
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
- Training Base of Army Logistics, University of PLA, Xiangyang 441000, China.
| | - Jing Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China.
| | - Bin Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
- Key Laboratory of Environment Correlative Dietology, Huazhong Agricultural University, Ministry of Education, Wuhan 430070, China.
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Fabrication of Konjac glucomannan-based composite hydrogel crosslinked by calcium hydroxide for promising lacrimal plugging purpose. Int J Biol Macromol 2019; 127:440-449. [DOI: 10.1016/j.ijbiomac.2019.01.069] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 01/11/2019] [Accepted: 01/16/2019] [Indexed: 01/22/2023]
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21
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Effects of Ultrasonication on the Conformational, Microstructural, and Antioxidant Properties of Konjac Glucomannan. APPLIED SCIENCES-BASEL 2019. [DOI: 10.3390/app9030461] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This study aims to evaluate the effects of ultrasonication (US) on the conformational, microstructural, and antioxidant properties of konjac glucomannan (KGM). US treatment with a 20-kHz and 750-W ultrasonic processor at 60% amplitude was applied for partial degradation of KGM with an average molecular weight (MW) of 823.4 kDa. Results indicated that the US treatment caused dramatic reduction in the MW, apparent viscosity, hydrodynamic radius, and z-average mean radius of gyration. The flexibility of chain conformation of native KGM was slightly increased during the US treatment. According to electronic microscopic imaging, the compact, smooth, and orderly fibrous strings formed by KGM were changed to amorphous, porous flakes and globular particles after US treatment. KGM and its US-treated fractions showed moderate radical-scavenging and ferric-reducing antioxidant activity. US degradation of KGM affected these activities either positively or negatively, depending on the US treatment period. In summary, ultrasonic degradation of KGM caused changes in its conformation characteristics, microstructure, and antioxidant activities.
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Xu W, Li B, Li J, Huang L, Liu H, Zhu D, Liu M, Liu X. Rheological and spectral analysis of xanthan gum/lysozyme system during nanoparticle fabrication. Int J Food Sci Technol 2018. [DOI: 10.1111/ijfs.13854] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- Wei Xu
- College of Life Science; Xinyang Normal University; Xinyang 464000 China
- Institute for Conservation and Utilization of Agro-bioresources in Dabie Mountains; Xinyang 464000 China
| | - Bin Li
- College of Food Science and technology; Huazhong Agriculture University; Wuhan 430070 China
| | - Juan Li
- College of Life Science; Xinyang Normal University; Xinyang 464000 China
| | - Lu Huang
- College of Life Science; Xinyang Normal University; Xinyang 464000 China
| | - Huan Liu
- College of Life Science; Xinyang Normal University; Xinyang 464000 China
| | - Dandan Zhu
- College of Life Science; Xinyang Normal University; Xinyang 464000 China
| | - Mengru Liu
- College of Life Science; Xinyang Normal University; Xinyang 464000 China
| | - Xinfang Liu
- College of Life Science; Xinyang Normal University; Xinyang 464000 China
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Kumoro A, Yuganta T, Retnowati D, Ratnawati R. Acid Hydrolysis and Ethanol Precipitation for Glucomannan Extraction from Crude Porang (Amorphophallus Oncophyllus) Tuber Flour. CHEMISTRY & CHEMICAL TECHNOLOGY 2018. [DOI: 10.23939/chcht12.01.101] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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24
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Kurt A, Kahyaoglu T. The Physicochemical and Structural Characteristics of Cultivated Sahlep. INTERNATIONAL JOURNAL OF SECONDARY METABOLITE 2017. [DOI: 10.21448/ijsm.377370] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
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Lafarge C, Cayot N. Potential Use of Mixed Gels from Konjac Glucomannan and Native Starch for Encapsulation and Delivery of Aroma Compounds: A Review. STARCH-STARKE 2017. [DOI: 10.1002/star.201700159] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Céline Lafarge
- Univ. Bourgogne Franche‐Comté, AgroSup DijonPAM UMR A 02.102F‐21000 DijonFrance
| | - Nathalie Cayot
- Univ. Bourgogne Franche‐Comté, AgroSup DijonPAM UMR A 02.102F‐21000 DijonFrance
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Kurt A, Kahyaoglu T. Purification of glucomannan from salep: Part 2. Structural characterization. Carbohydr Polym 2017; 169:406-416. [DOI: 10.1016/j.carbpol.2017.04.052] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 04/19/2017] [Accepted: 04/19/2017] [Indexed: 01/04/2023]
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Kurt A, Kahyaoglu T. Purification of glucomannan from salep: Part 1. Detailed rheological characteristics. Carbohydr Polym 2017; 168:138-146. [DOI: 10.1016/j.carbpol.2017.03.060] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2016] [Revised: 02/01/2017] [Accepted: 03/18/2017] [Indexed: 10/19/2022]
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28
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Yilmaz MT, Vatansever C. Three interval thixotropy test to determine structural regeneration of a glucomannan based hydrocolloid film at air/water interface: Interfacial, molecular, thermal and surface characterization. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.06.004] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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29
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Effect of commercial konjac glucomannan and konjac flours on textural, rheological and microstructural properties of low fat processed cheese. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2016.03.034] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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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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Behera SS, Ray RC. Nutritional and potential health benefits of konjac glucomannan, a promising polysaccharide of elephant foot yam,Amorphophallus konjacK. Koch: A review. FOOD REVIEWS INTERNATIONAL 2016. [DOI: 10.1080/87559129.2015.1137310] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Kurt A, Kahyaoglu T. Rheological properties and structural characterization of salep improved by ethanol treatment. Carbohydr Polym 2015; 133:654-61. [DOI: 10.1016/j.carbpol.2015.07.028] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2015] [Revised: 06/29/2015] [Accepted: 07/09/2015] [Indexed: 01/04/2023]
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Teng X, Ma C, Ge C, Yan M, Yang J, Zhang Y, Morais PC, Bi H. Green synthesis of nitrogen-doped carbon dots from konjac flour with "off-on" fluorescence by Fe 3+ and l-lysine for bioimaging. J Mater Chem B 2014; 2:4631-4639. [PMID: 32262275 DOI: 10.1039/c4tb00368c] [Citation(s) in RCA: 152] [Impact Index Per Article: 15.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
Highly nitrogen-doped carbon dots (N-CDs) are prepared by the pyrolysis of konjac flour under mild conditions followed with a simple extraction by ethanol and water. The N-CDs exhibit excellent pH-switched photoluminescence (PL), and their PL intensity can be facilitated by either mixing with NaOH and basic amino acids or by surface passivation with non-amine-terminated polyethylene glycols of different molecular weights. Further, the fluorescence of N-CDs can be quenched with Fe3+ and recovered with l-lysine, accompanied with a red-shift of emission wavelength. In addition, the low toxicity and strongly fluorescent N-CDs are applied for cell imaging, and the quenched fluorescence by Fe3+ can be recovered inside the living cells.
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Affiliation(s)
- Xiyao Teng
- College of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China.
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