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Modifications of konjac glucomannan for diverse applications

Published on Aug 1, 2018in Food Chemistry5.40
· DOI :10.1016/j.foodchem.2018.02.151
Fan Zhu14
Estimated H-index: 14
(University of Auckland)
Cite
Abstract
Abstract Konjac glucomannan (KGM) is a major polysaccharide from the corm of Amorphophallus konjac. Native KGM has limited uses and has been chemically/physically/enzymatically modified to expand the range of functional properties. This mini-review summarises the recent advances of modifying KGM for diverse food and nonfood applications, focusing on the chemical and physical modifications. The chemical methods include substitution, grafting, cross-linking, oxidation, and deacetylation, whereas the physical modifications are electrospinning, microfluidic spinning, γ-irradiation, extrusion, and electric field processing. The modified KGM has been used in a range of different applications, including biodegradable film, emulsion, medical and pharmaceutical material, encapsulation and controlled release, fish feed and functional food ingredient, separation medium, aerogel, liquid crystal, absorbent for removal of pollutants in waste water, and so on. These KGM-based products tend to be biodegradable, biocompatible, and non-toxic with improved functional performance.
  • References (59)
  • Citations (7)
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References59
Newest
Published on Nov 5, 2017in Journal of Applied Polymer Science2.19
Fang Yang3
Estimated H-index: 3
(WIT: Wuhan Institute of Technology),
Mei Zhang2
Estimated H-index: 2
(WIT: Wuhan Institute of Technology)
+ 2 AuthorsFatang Jiang13
Estimated H-index: 13
(HBUT: Hubei University of Technology)
In this article, four kinds of konjac glucomannan based superabsorbent polymers (KSAPs) with different aggregate sizes were obtained by sieving the KSAP powders manually. They were characterized by scanning electronic microscopy (SEM), Fourier transform infrared (FTIR), thermogravimetric analysis (TGA), and optical contact angle (OCA), and the effects of aggregate size on liquid absorption characteristics of KSAP were studied in detail. The results show that the coarse KSAP particles were aggreg...
Published on Sep 1, 2017in Food Chemistry5.40
Wenjie Jian4
Estimated H-index: 4
(SCAU: South China Agricultural University),
Liying Tu1
Estimated H-index: 1
(JMU: Jimei University)
+ 3 AuthorsYuanming Sun20
Estimated H-index: 20
(SCAU: South China Agricultural University)
Abstract Konjac glucomannan (KGM) is an important functional polysaccharide in food research. However, unstable dispersibility of KGM inhibits its in-depth study and wide application. In this study, a degraded KGM (100 kGy-KGM), which showed excellent dispersibility and specific physicochemical properties, were obtained by γ-irradiation in a dosage of 100 kGy. We investigated the protective effect of 100 kGy-KGM against H 2 O 2 induced oxidative damage in LO2 cells. Our results demonstrated that...
Published on Jul 15, 2017in Molecules3.06
Sellen Gurusmatika1
Estimated H-index: 1
,
Kosuke Nishi16
Estimated H-index: 16
+ 2 AuthorsTakuya Sugahara21
Estimated H-index: 21
Porang is a local plant of Indonesia, which has a high content of glucomannan. In this study, porang glucomannan (PG) was esterified with octenyl succinic anhydride (OSA) to enhance emulsion properties to be widely used in food industry. OSA-modified PG (OSA-PG) enhanced the phagocytosis activity of macrophage-like J774.1 cells and mouse peritoneal macrophages. In addition, OSA-PG increased the production of IL-6 and TNF-α by enhancing their gene expression. Immunoblot analysis displayed that OS...
Published on Jun 1, 2017in Materials Letters3.02
Ruo-Jun Mu5
Estimated H-index: 5
(Fujian Agriculture and Forestry University),
Yongsheng Ni4
Estimated H-index: 4
(Fujian Agriculture and Forestry University)
+ 4 AuthorsSu Chen33
Estimated H-index: 33
(Nanjing University of Technology)
Abstract The exploration of methods to produce biocompatible materials in ultrasmall scales is of great scientific and technological interest. We reported a microfluidic spinning technology (MST) for fabrication of microfibers with a novel biocompatible material, konjac glucomannan (KGM) as the main material combined with sodium polyacrylate (PAAS). These as-produced KGM/PAAS microfibers are consistent and uniform in size with an average width of 100 μm. Also, these microfibers can easily arrang...
Published on Apr 3, 2017in Journal of Macromolecular Science, Part A1.16
Meng Wang2
Estimated H-index: 2
,
Weitao He2
Estimated H-index: 2
+ 1 AuthorsXianliang Song7
Estimated H-index: 7
ABSTRACTIn this paper, konjac glucomannan was cationized by 3-chloro-2-hydroxypropyl trimethyl ammonium chloride (a kind of cationic reagent) as a paper strength agent. The effects of dosage of cationic reagent, cationization time, cationization temperature and the pH of papermaking on paper properties were analyzed. The results showed that when 1% cationic glucomannan (the cationization temperature was 70°C, dosage of cationic reagent was 20% and cationization time was 5 h) was added, tensile i...
Published on Apr 1, 2017in Carbohydrate Polymers6.04
Pan-pan Chen2
Estimated H-index: 2
(SWUST: Southwest University of Science and Technology),
Hong-ping Zhang16
Estimated H-index: 16
(SWUST: Southwest University of Science and Technology)
+ 4 AuthorsYouhong Tang30
Estimated H-index: 30
(Flinders University)
Abstract Carboxylmethyl konjac glucomannan conjugated polydopamine (CMKGM-PDA) composite was successfully prepared using a cost-effective method. CMKGM-PDA exhibited excellent adsorption performance for the removal of Pb(II) and could be a convenient agent for recovery. The Langmuir linear model was suitable for describing the adsorption process of Pb(II). The maximum adsorption capacity was 95.24 mg g −1 at 298 K, showing a high absorption capacity in comparison to similar absorbents. The pseud...
Published on Mar 1, 2017in Advances in Polymer Technology2.66
Da‐Ting Tian1
Estimated H-index: 1
(Huda: Hubei University),
Yu‐Chi Zhou1
Estimated H-index: 1
(Huda: Hubei University)
+ 1 AuthorsFang‐Ting Lu1
Estimated H-index: 1
(Huda: Hubei University)
A novel molecularly imprinted polymers (MIPs) for caffeine based on konjac glucomannan (KGM) was prepared using grafted copolymer of KGM/acrylic acid as a functional monomer, N,N′-methylenebisacrylamide as a cross-linker, and caffeine as a template. The recognition sites in MIPs were confirmed by Fourier transform infrared spectroscopy and the morphology of MIPs was characterized by scanning electron microscopy. Compared with nonimprinted polymers (NIPs), the obtained MIPs showed high adsorption...
Published on Feb 1, 2017in Industrial & Engineering Chemistry Research3.38
Shaohua Gou7
Estimated H-index: 7
,
Shiwei Li3
Estimated H-index: 3
+ 5 AuthorsQipeng Guo34
Estimated H-index: 34
Synthesis of a novel biodegradable hydrosoluble graft-copolymer named KGM-g-AM-g-AA-g-APEG was carried out using konjac glucomannan, acrylamide, acrylic acid, and allyl polyoxyethylene ether via free-radical copolymerization. Effective characterization methods , including XRD, TGA, FT-IR, 1H NMR, and SEM, were adopted to evaluate the graft-copolymer. The good biodegradability of the graft-copolymer was confirmed, with a degradation rate >60% in 28 days, by a biological degradation experiment. Su...
Published on Feb 1, 2017in Carbohydrate Polymers6.04
Mengxuan Shi1
Estimated H-index: 1
(CAU: China Agricultural University),
Jie Bai1
Estimated H-index: 1
(CAU: China Agricultural University)
+ 5 AuthorsYuan Li5
Estimated H-index: 5
(CAU: China Agricultural University)
In this study, pH-responsive microspheres loaded with multiple antioxidants were developed for intestine-specific delivery and exhibited synergistic activity. They consist of chitosan (CS)-coated microspheres made of TEMPO-oxidized Konjac glucomannan (OKGM) polymers, of which the carboxyl (COO−) groups are cross-linked via ferric ions (Fe3+), allowing the hydrophobic (β-carotene) and hydrophilic (anthocyanins) antioxidants to be simultaneously incorporated. CLSM images showed successful co-encap...
Published on Feb 1, 2017in Aquaculture International1.46
Liao Zhang1
Estimated H-index: 1
(Sichuan Agricultural University),
Yinglong Wu3
Estimated H-index: 3
(Sichuan Agricultural University)
+ 1 AuthorsYongfang Yao2
Estimated H-index: 2
(Sichuan Agricultural University)
Prenant’s schizothoracin (Schizothorax prenanti) is an important existemic commercial fish in Yangtze River. Oxidized konjac glucomannan (OKGM) is a kind of polysaccharide oxidative degraded from konjac glucomannan. The diet of S. prenanti was supplemented with 500, 1000, 2000, 4000, and 8000 mg/kg OKGM. After a 60-day feeding trial, Escherichia coli, Salmonella, Lactobacillus, and Bifidobacterium in the intestines of S. prenanti were quantified, and intestinal flora was analyzed using polymeras...
Cited By7
Newest
Published on Sep 1, 2019in Food Hydrocolloids5.84
Minmin Ai1
Estimated H-index: 1
(SCAU: South China Agricultural University),
Quan Zhou1
Estimated H-index: 1
(SCAU: South China Agricultural University)
+ 5 AuthorsAimin Jiang1
Estimated H-index: 1
(SCAU: South China Agricultural University)
Abstract This study investigates the effects of tea polyphenol (TP) and Ca(OH) 2 on the physicochemical, mechanical, rheological, and microstructural characteristics of alkali-induced duck egg white (EW) gels. The surface hydrophobicity increases significantly after adding TP, while decreases after adding Ca(OH) 2 . Secondary structural analysis indicates that the addition of TP and Ca(OH) 2 reduces the β-sheets content and increases the ɑ-helical content. The addition of TP improves the interac...
Published on Jul 12, 2019in Cereal Chemistry1.29
Fan Zhu (University of Auckland), Yu Zhang (University of Auckland)
Published on Jun 12, 2019in Polymer Bulletin1.86
Dating Tian (MUC: Minzu University of China), Yuchi Zhou (MUC: Minzu University of China)+ 1 AuthorsHuiting Kang (MUC: Minzu University of China)
Preparation of konjac glucomannan-grafted poly(trimethyl allyl ammonium chloride) (KGM-g-PTMAAC) was carried out using KGM as polysaccharide matrix and TMAAC as cationic comonomer to develop biodegradable flocculants. The structure of KGM-g-PTMAAC was characterized by FTIR, 13C solid-state NMR, elemental analysis (EA) and SEM. Thermal properties of KGM-g-PTMAAC were studied by thermal gravimetric (TG) analysis. In addition, flocculation properties of KGM-g-PTMAAC were investigated in a kaolin su...
Published on May 2, 2019in Polymers
Tingting Cui , Rui Liu7
Estimated H-index: 7
+ 2 AuthorsMin Zhang
The impact of various amounts of konjac glucomannan on the structural and physicochemical properties of gluten proteins/dough at different periods of frozen storage is evaluated in the present study. As frozen storage time was prolonged, the molecular weight and the free sulfhydryl content of gluten proteins and the tensile properties of frozen dough all decreased. The addition of konjac glucomannan reduced the variations in the structural and rheological properties of gluten proteins/dough. Fro...
Published on Apr 1, 2019in International Journal of Biological Macromolecules4.78
Ramya Devi Devaraj1
Estimated H-index: 1
(Hong Kong Baptist University),
Chagam Koteswara Reddy2
Estimated H-index: 2
(Pondicherry University),
Baojun Xu29
Estimated H-index: 29
(Hong Kong Baptist University)
Abstract Konjac glucomannan (KGM) is a dietary fiber hydrocolloidal polysaccharide isolated from the tubers of Amorphophallus konjac . Over the last few decades, the purified KGM has been offered as a food additive as well as a dietary supplement in many countries. Also, a diet containing konjac flour or KGM is considered as healthier, and these foods are popular in many Asian and European markets. Further, due to the adhesive property of KGM, it can form a defensive covering on the surface of t...
Published on Mar 1, 2019in Carbohydrate Polymers6.04
Jundong Zhu1
Estimated H-index: 1
(CSU: Central South University),
Jiang Hu1
Estimated H-index: 1
(CSU: Central South University)
+ 2 AuthorsYing Li1
Estimated H-index: 1
(CSU: Central South University)
Abstract Konjac glucomannan (KGM) aerogel was prepared by a facile freeze-drying process, which was used as green sustainable biopolymer matrix to synthesis three-dimensional (3D) network interpenetrated KGM-SiO 2 aerogel with thermal insulation performance and high mechanical properties. Herein, we explored that the potential structure–performance relationship of KGM aerogel between the physical parameters, morphology and thermal insulation. Besides, the preparation conditions of KGM aerogel in...
Published on Jan 1, 2019in Cyta-journal of Food1.60
Qiaoran Zheng (Yangtze Normal University), Wenfeng Li (Yangtze Normal University)+ 4 AuthorsYan Zhang (Yangtze Normal University)
ABSTRACTThe ultrasound-degraded oxidized konjac glucomannan (U-OKGM) was manufactured and its immune activity in RAW264.7 macrophages was examined. Results showed that ultrasound treatment, which was an effective method to obtain low molecular weight OKGM, did not change the main structure of polysaccharides under the test conditions. Molecular weights (MW) of OKGM and U-OKGM are about 1.58 × 106 g/mol and 5.64 × 105 g/mol, respectively. We showed that U-OKGM could inhibit NO secretion and augme...
Published on Oct 1, 2018in NANO1.29
Jie Lian1
Estimated H-index: 1
(SWUST: Southwest University of Science and Technology),
Jiwei Li3
Estimated H-index: 3
(Qingdao University)
+ 6 AuthorsWenkun Zhu7
Estimated H-index: 7
(SWUST: Southwest University of Science and Technology)
Environmental and energy issues have always been a hot topic of global research. Oil leakage has caused great damage to the environment, affecting a wide area and it is difficult to clean up. In most cases, carbon-based adsorbents are typically utilized to remove oil spills because of their economic benefits and high adsorbent efficiency. At the same time, its excellent material properties can also be used for the preparation of supercapacitors. In this paper, the carbon aerogels were prepared b...
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