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Davies C, González-Ortiz G, Rinttilä T, Apajalahti J, Alyassin M, Bedford MR. Stimbiotic supplementation and xylose-rich carbohydrates modulate broiler's capacity to ferment fibre. Front Microbiol 2024; 14:1301727. [PMID: 38274766 PMCID: PMC10808361 DOI: 10.3389/fmicb.2023.1301727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2023] [Accepted: 12/20/2023] [Indexed: 01/27/2024] Open
Abstract
Stimbiotics are a new category of feed additives that can increase fibre fermentability by stimulating fibre-degrading microbiota in the gut. The aim of this study was to test, ex vivo, if the microbiota of broilers fed a stimbiotic are better able to ferment different xylose-rich substrates in an ileal and a caecal environment. The ileal and caecal contents from broiler chickens fed a stimbiotic or from a control group were used as an inoculum in the ex vivo fermentation experiment. Different xylose-rich substrates including monomeric xylose (XYL), XOS with DP 2 to 6 (XOS), short DP XOS of 2 to 3 (sDP-XOS), long DP XOS of 4 to 6 (lDP-XOS) and de-starched wheat bran (WB), were added to each ileal and caecal inoculum in fermentation vessels. Total gas, short-chain fatty acids (SCFA) production, bacterial quantification, and carbohydrate utilisation were monitored for 9 h post-inoculation. No significant interactions were observed in any of the parameters measured in either the ileal or caecal contents (p > 0.05). Stimbiotic ileal inocula resulted in higher total gas (p < 0.001) and volatile fatty acid (VFA) (p < 0.001) production, increased numbers of Lactobacillus spp. (p < 0.001), and decreased numbers of Enterococcus spp. (p < 0.01) after 9 h regardless of the xylose-rich substrate added. Stimbiotic caecal inocula resulted in a higher ratio of VFA to branched-chain fatty acids (BCFAs) by up to +9% (p < 0.05). Ileal microbiota were found to preferentially metabolise WB, while caecal microbiota favoured XOS substrates, particularly lDP-XOS. These results indicate that stimbiotics can promote the abundance of lactic acid bacteria involved in the establishment of fibre-degrading bacteria and VFA content in the gut, which could have beneficial effects on broiler performance. Further, ileal and caecal microbiota differ in their utilisation of different substrates which may impact the effectiveness of different stimbiotic products.
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Affiliation(s)
| | | | - Teemu Rinttilä
- AB Vista, Wiltshire, United Kingdom
- Alimetrics Research Ltd., Espoo, Finland
| | - Juha Apajalahti
- AB Vista, Wiltshire, United Kingdom
- Alimetrics Research Ltd., Espoo, Finland
| | - Mohammad Alyassin
- School of Applied Sciences, University of Huddersfield, Huddersfield, United Kingdom
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Zhu B, Sun-Waterhouse D, You L. Insights into the mechanisms underlying the degradation of xylooligosaccharides in UV/H 2O 2 system. Carbohydr Polym 2023; 317:121091. [PMID: 37364944 DOI: 10.1016/j.carbpol.2023.121091] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2023] [Revised: 05/24/2023] [Accepted: 06/02/2023] [Indexed: 06/28/2023]
Abstract
UV/H2O2 process is increasingly used to degrade carbohydrates, though the underlying mechanisms remain unclear. This study aimed to fill this knowledge gap, focusing on mechanisms and energy consumption involved in hydroxyl radical (•OH)-mediated degradation of xylooligosaccharides (XOSs) in UV/H2O2 system. Results showed that UV photolysis of H2O2 generated large amounts of •OH radicals, and degradation kinetics of XOSs fitted with a pseudo-first-order model. Xylobiose (X2) and xylotriose (X3), main oligomers in XOSs, were attacked easier by •OH radicals. Their hydroxyl groups were largely converted to carbonyl groups and then carboxy groups. The cleavage rate of glucosidic bonds was slightly higher than that of pyranose ring, and exo-site glucosidic bonds were more easily cleaved than endo-site bonds. The terminal hydroxyl groups of xylitol were more efficiently oxidized than other hydroxyl groups of it, causing an initial accumulation of xylose. Oxidation products from xylitol and xylose included ketoses, aldoses, hydroxy acids and aldonic acids, indicating the complexity of •OH radical-induced XOSs degradation. Quantum chemistry calculations revealed 18 energetically viable reaction mechanisms, with the conversion of hydroxy-alkoxyl radicals to hydroxy acids being the most energetically favorable (energy barriers <0.90 kcal/mol). This study will provide more understanding of •OH radicals-mediated degradation of carbohydrates.
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Affiliation(s)
- Biyang Zhu
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China; Research Institute for Food Nutrition and Human Health (111 Center), Guangzhou, Guangdong 510640, China
| | - Dongxiao Sun-Waterhouse
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China; School of Chemical Sciences, University of Auckland, Auckland 1142, New Zealand
| | - Lijun You
- School of Food Science and Engineering, South China University of Technology, Guangzhou, Guangdong 510640, China; Research Institute for Food Nutrition and Human Health (111 Center), Guangzhou, Guangdong 510640, China.
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Liu Y, Dong Y, Shen W, DU J, Sun Q, Yang Y, Yin D. Platycodon grandiflorus polysaccharide regulates colonic immunity through mesenteric lymphatic circulation to attenuate ulcerative colitis. Chin J Nat Med 2023; 21:263-278. [PMID: 37120245 DOI: 10.1016/s1875-5364(23)60435-2] [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: 08/10/2022] [Indexed: 05/01/2023]
Abstract
Platycodon grandiflorus polysaccharide (PGP) is one of the main components of P. grandiflorus, but the mechanism of its anti-inflammatory effect has not been fully elucidated. The aim of this study was to evaluate the therapeutic effect of PGP on mice with dextran sodium sulfate (DSS)-induced ulcerative colitis (UC) and explore the underlying mechanisms. The results showed that PGP treatment inhibited the weight loss of DSS-induced UC mice, increased colon length, and reduced DAI, spleen index, and pathological damage within the colon. PGP also reduced the levels of pro-inflammatory cytokines and inhibited the enhancement of oxidative stress and MPO activity. Meanwhile, PGP restored the levels of Th1, Th2, Th17, and Treg cell-related cytokines and transcription factors in the colon to regulate colonic immunity. Further studies revealed that PGP regulated the balance of colonic immune cells through mesenteric lymphatic circulation. Taken together, PGP exerts anti-inflammatory and anti-oxidant effect and regulates colonic immunity to attenuate DSS-induced UC through mesenteric lymphatic circulation.
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Affiliation(s)
- Yang Liu
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Yahui Dong
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Wei Shen
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; Engineering Technology Research Center of Modernized Pharmaceutics, Anhui Education Department (AUCM), Hefei 230012, China
| | - Jiahui DU
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Quanwei Sun
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China
| | - Ye Yang
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; Anhui Provincial Key Laboratory of Pharmaceutical Preparation Technology and Application, Hefei 230021, China.
| | - Dengke Yin
- School of Pharmacy, Anhui University of Chinese Medicine, Hefei 230012, China; Engineering Technology Research Center of Modernized Pharmaceutics, Anhui Education Department (AUCM), Hefei 230012, China; Anhui Provincial Key Laboratory of Pharmaceutical Preparation Technology and Application, Hefei 230021, China; Anhui Provincial Key Laboratory of Research & Development of Chinese Medicine, Hefei 230021, China.
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Joyce GE, Kagan IA, Flythe MD, Davis BE, Schendel RR. Profiling of cool-season forage arabinoxylans via a validated HPAEC-PAD method. FRONTIERS IN PLANT SCIENCE 2023; 14:1116995. [PMID: 36993841 PMCID: PMC10040848 DOI: 10.3389/fpls.2023.1116995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Accepted: 02/27/2023] [Indexed: 06/19/2023]
Abstract
Cool-season pasture grasses contain arabinoxylans (AX) as their major cell wall hemicellulosic polysaccharide. AX structural differences may influence enzymatic degradability, but this relationship has not been fully explored in the AX from the vegetative tissues of cool-season forages, primarily because only limited AX structural characterization has been performed in pasture grasses. Structural profiling of forage AX is a necessary foundation for future work assessing enzymatic degradability and may also be useful for assessing forage quality and suitability for ruminant feed. The main objective of this study was to optimize and validate a high-performance anion-exchange chromatography with pulsed amperometric detection (HPAEC-PAD) method for the simultaneous quantification of 10 endoxylanase-released xylooligosaccharides (XOS) and arabinoxylan oligosaccharides (AXOS) in cool-season forage cell wall material. The following analytical parameters were determined or optimized: chromatographic separation and retention time (RT), internal standard suitability, working concentration range (CR), limit of detection (LOD), limit of quantification (LOQ), relative response factor (RRF), and quadratic calibration curves. The developed method was used to profile the AX structure of four cool-season grasses commonly grown in pastures (timothy, Phleum pratense L.; perennial ryegrass, Lolium perenne L.; tall fescue, Schedonorus arundinaceus (Schreb.) Dumort.; and Kentucky bluegrass, Poa pratensis L.). In addition, the cell wall monosaccharide and ester-linked hydroxycinnamic acid contents were determined for each grass. The developed method revealed unique structural aspects of the AX structure of these forage grass samples that complemented the results of the cell wall monosaccharide analysis. For example, xylotriose, representing an unsubstituted portion of the AX polysaccharide backbone, was the most abundantly-released oligosaccharide in all the species. Perennial rye samples tended to have greater amounts of released oligosaccharides compared to the other species. This method is ideally suited to monitor structural changes of AX in forages as a result of plant breeding, pasture management, and fermentation of plant material.
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Affiliation(s)
- Glenna E. Joyce
- Department of Animal and Food Sciences, University of Kentucky, Lexington, KY, United States
| | - Isabelle A. Kagan
- Forage-Animal Production Research Unit, U.S. Department of Agriculture, Agricultural Research Service (USDA-ARS), Lexington, KY, United States
| | - Michael D. Flythe
- Department of Animal and Food Sciences, University of Kentucky, Lexington, KY, United States
- Forage-Animal Production Research Unit, U.S. Department of Agriculture, Agricultural Research Service (USDA-ARS), Lexington, KY, United States
| | - Brittany E. Davis
- Department of Animal and Food Sciences, University of Kentucky, Lexington, KY, United States
- Forage-Animal Production Research Unit, U.S. Department of Agriculture, Agricultural Research Service (USDA-ARS), Lexington, KY, United States
| | - Rachel R. Schendel
- Department of Animal and Food Sciences, University of Kentucky, Lexington, KY, United States
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Li D, Hua X, Luo J, Xu Y. Quantitative determination of galacturonic acid in pectin and pectin products by combined pectinase hydrolysis and HPLC determination. Food Addit Contam Part A Chem Anal Control Expo Risk Assess 2023; 40:319-327. [PMID: 36649318 DOI: 10.1080/19440049.2023.2165171] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
Pectin is a complex heteropolysaccharide with a predominantly galacturonic acid (GalA) main chain and various branching sugars, leading to some analytical and quantitative determination challenges. By comparison with various acid hydrolysis methods, an effective and precise hydrolysis method for GalA determination from pectin was investigated using a combination of pectinase hydrolysis (PH) and HPLC determination, which was named the PH-HPLC method. With a pectinase loading of 2250 U/g pectin, 4.0 g/L commercial pectin was almost completely hydrolysed to the intact and detectable GalA at 50 °C after 24 h, for quantitative determination by HPLC. Acid-catalysis methods showed obvious disadvantages in terms of GalA degradation or incomplete hydrolysis of pectin, resulting in imprecise determination results. Moreover, the PH-HPLC method was employed for the quantitative determination of GalA in three common natural pectin feedstocks and indicated 45.5-233.1% higher content of GalA than the acid hydrolysis method. Thus, the PH-HPLC method is demonstrated to be a precise approach for analysing and quantifying the GalA of pectin and respective feedstock.
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Affiliation(s)
- Danfeng Li
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, China.,Jiangsu Province Key Laboratory of Green Biomass-based Fuels and Chemicals, Nanjing, China.,Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing, China
| | - Xia Hua
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, China.,Jiangsu Province Key Laboratory of Green Biomass-based Fuels and Chemicals, Nanjing, China.,Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing, China
| | - Jing Luo
- School of Chemistry and Environmental Engineering Jiangsu University of Technology, Changzhou, China
| | - Yong Xu
- Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, College of Chemical Engineering, Nanjing Forestry University, Nanjing, China.,Jiangsu Province Key Laboratory of Green Biomass-based Fuels and Chemicals, Nanjing, China.,Key Laboratory of Forestry Genetics & Biotechnology (Nanjing Forestry University), Ministry of Education, Nanjing, China
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Zhu B, Chen Y, Chang S, Qiu H, You L. Degradation kinetic models and mechanism of isomaltooligosaccharides by hydroxyl radicals in UV/H2O2 system. Carbohydr Polym 2023; 300:120240. [DOI: 10.1016/j.carbpol.2022.120240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 10/09/2022] [Accepted: 10/14/2022] [Indexed: 11/02/2022]
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Zhang Q, Lu L, Zheng Y, Qin C, Chen Y, Zhou Z. Isolation, Purification, and Antioxidant Activities of Polysaccharides from Choerospondias axillaris Leaves. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27248881. [PMID: 36558014 PMCID: PMC9783564 DOI: 10.3390/molecules27248881] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 11/30/2022] [Accepted: 12/08/2022] [Indexed: 12/23/2022]
Abstract
The extraction, characterization and antioxidant activity of polysaccharides from Choerospondias axillaris leaves were investigated in the present study. Two purified polysaccharide fractions, CALP-1 and CALP-2, were isolated from crude Choerospondias axillaris leaf polysaccharides (CALP) by DEAE-52 cellulose chromatography and Sephadex G-100 column chromatography. The characteristics of CAL-1 and CALP-2 were determined by using High-performance Gel Permeation Chromatography (HPGPC), High-Performance Anion-Exchange Chromatography, HPAEC (HPAEC-PAD) and Fourier transform infrared spectroscopy (FTIR). CALP-1 with molecular weight of 11.20 KDa was comprised of Rhamnose, Arabinose, Galactose, Glucose, Xylose, Mannose and galacturonic acid in a molar ratio of 5.16:2.31:5.50:27.18:1.00:0.76:1.07. CAL-2 with molecular weight of 8.03 KDa consisted of Rhamnose, Arabinose, Galactose, Glucose, and galacturonic acid at a ratio of 1.38:3.63:18.84:8.28:1.45. FTIR revealed that CALP-1 and CALP-2 were acidic polysaccharides. The antioxidant activity of crude CALP, CALP-1 and CALP-2 was evaluated in vitro. The fraction CALP-2 was demonstrated to be of polysaccharide nature containing a large percentage of Galactose but no Xylose and Mannose. The antioxidant activity assays showed that CALP-1 and CALP-2 exhibited antioxidant and scavenging activities on hydroxyl and DPPH radicals in vitro. Compared with pure polysaccharide, crude CALP exhibited stronger anti-oxidant activities. These results will provide a better understanding of Choerospondias axillaris leaf polysaccharide and promote the potential applications of Choerospondias axillaris leaf polysaccharide in the pharmacological field and as a natural antioxidant.
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Affiliation(s)
- Qiang Zhang
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
- Nanning New Technology Entrepreneur Center, Nanning 530007, China
- College of Pharmacy, Guangxi University of Traditional Chinese Medicine, Nanning 530200, China
| | - Lianxiang Lu
- College of Pharmacy, Guangxi University of Traditional Chinese Medicine, Nanning 530200, China
| | - Yanfei Zheng
- School of Chemistry and Chemical Engineering, Guangxi Normal University for Nationalities, Chongzuo 532200, China
| | - Chengrong Qin
- College of Light Industry and Food Engineering, Guangxi University, Nanning 530004, China
- Correspondence: (C.Q.); (Y.C.); Tel./Fax: +86-13737095505 (C.Q.); +86-13014982147 (Y.C.)
| | - Yuexin Chen
- Nanning New Technology Entrepreneur Center, Nanning 530007, China
- Correspondence: (C.Q.); (Y.C.); Tel./Fax: +86-13737095505 (C.Q.); +86-13014982147 (Y.C.)
| | - Zhongjie Zhou
- Nanning New Technology Entrepreneur Center, Nanning 530007, China
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Song H, Zhang Z, Li Y, Zhang Y, Yang L, Wang S, He Y, Liu J, Zhu D, Liu H. Effects of different enzyme extraction methods on the properties and prebiotic activity of soybean hull polysaccharides. Heliyon 2022; 8:e11053. [PMID: 36339765 PMCID: PMC9634275 DOI: 10.1016/j.heliyon.2022.e11053] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Revised: 06/22/2022] [Accepted: 10/07/2022] [Indexed: 11/25/2022] Open
Abstract
In this study, five different processes, including hot water (HW-ASP), single enzyme (cellulase, pectinase and papain; C-ASP, PE-ASP, and P-ASP), and compound-enzyme (cellulose: pectinase: papain = 3:3:1; CE-ASP) for the extraction of soybean hull polysaccharides (ASPs) were employed, and the characterization and prebiotics activity of five polysaccharides were analyzed. These polysaccharides possessed different primary structural characteristics, including molecular weight distribution, monosaccharide composition, chemical composition, surface morphology, potential particle size, etc., while similar functional groups. In vitro digestibility assay indicated that C-ASP had strong resistance to gastric juice hydrolysis and α-amylase as compared with HW-ASP. Furthermore, C-ASP elevated the acidifying activity and promoted the growth of probiotics (Lactobacillus paracasei, Lactobacillus rhamnosus, and Lactobacillus acidophilus) during the fermentation (p < 0.05). C-ASP improved the levels of total short-chain fatty acids (SCFAs) and had better prebiotic activity than HW-ASP (p < 0.05). These findings denote that enzyme-assisted polysaccharides extracted from soybean hulls have the potential to be served as novel probiotics.
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Chen H, Wang C, Tang B, Yu J, Lu Y, Zhang J, Yan Y, Deng H, Han L, Li S, Lu C. P. granatum Peel Polysaccharides Ameliorate Imiquimod-Induced Psoriasis-Like Dermatitis in Mice via Suppression of NF-κB and STAT3 Pathways. Front Pharmacol 2022; 12:806844. [PMID: 35153762 PMCID: PMC8831316 DOI: 10.3389/fphar.2021.806844] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2021] [Accepted: 12/10/2021] [Indexed: 11/23/2022] Open
Abstract
Psoriasis is a chronic and refractory inflammatory and autoimmune-mediated cutaneous disease affecting approximately 2%–3% of the global population. Most of the current therapies could relieve symptoms rapidly, while the side effects cannot be negligible. Hence, it is urgent to explore much safer and more effective treatments. In the current work, we evaluated the potential beneficial effect of Punica granatum peel polysaccharides (PPPs) in an imiquimod-elicited psoriasis-like mouse model and unraveled their mechanism of action. Firstly, PPPs were isolated from P. granatum peels, and then the molecular weight was determined and monosaccharide analysis was performed. The results revealed that PPPs significantly ameliorated psoriasis-like skin lesions and reduced the Psoriasis Area and Severity Index (PASI) scores and transepidermal water loss (TEWL). PPPs also attenuated the expressions of CD3 and Ki67 in psoriasis-like mouse skin and suppressed the serum or skin levels of pro-inflammatory cytokines, such as tumor necrosis factor alpha (TNF-α), interleukin 6 (IL-6), IL-1β, IL-8, IL-17, and IL-23. Moreover, PPPs were able to upregulate the mRNA and protein expressions of aquaporin-3 (AQP3) and filaggrin (FLG) in the skin of mice. In addition, PPPs inhibited the NF-κB and STAT3 signaling pathways. Overall, these results indicated that PPPs ameliorated the symptoms of psoriasis through inhibition of the inflammatory cytokines by suppressing the NF-κB and STAT3 signaling pathways and improved skin barrier protection via enhancing AQP3 and FLG. These observations potentially contribute to providing theoretical and experimental evidence for the clinical application of PPPs for psoriasis.
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Affiliation(s)
- Haiming Chen
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou, China
- Guangdong Clinical Research Center for Dermatosis in Chinese Medicine, Guangzhou, China
- Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Cheng Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, China
- Joint Laboratory of Chinese Herbal Glycoengineering and Testing Technology, University of Macau, Macao SAR, China
| | - Bin Tang
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Jingjie Yu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yue Lu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Junhong Zhang
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Yuhong Yan
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Hao Deng
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Ling Han
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou, China
| | - Shaoping Li
- State Key Laboratory of Quality Research in Chinese Medicine, Institute of Chinese Medical Sciences, University of Macau, Macao SAR, China
- Joint Laboratory of Chinese Herbal Glycoengineering and Testing Technology, University of Macau, Macao SAR, China
- *Correspondence: Shaoping Li, ; Chuanjian Lu,
| | - Chuanjian Lu
- State Key Laboratory of Dampness Syndrome of Chinese Medicine, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
- Guangdong Provincial Key Laboratory of Clinical Research on Traditional Chinese Medicine Syndrome, Guangzhou, China
- Guangdong Clinical Research Center for Dermatosis in Chinese Medicine, Guangzhou, China
- Guangdong-Hong Kong-Macau Joint Lab on Chinese Medicine and Immune Disease Research, Guangzhou University of Chinese Medicine, Guangzhou, China
- *Correspondence: Shaoping Li, ; Chuanjian Lu,
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Abstract
Food carbohydrates are macronutrients that are found in fruits, grains, vegetables, and milk products. These organic compounds are present in foods in the form of sugars, starches, and fibers and are composed of carbon, hydrogen, and oxygen. These wide ranging macromolecules can be classified according to their chemical structure into three major groups: low molecular weight mono- and disaccharides, intermediate molecular weight oligosaccharides, and high molecular weight polysaccharides. Notably, the digestibility of specific carbohydrate components differ and nondigestible carbohydrates can reach the large intestine intact where they act as food sources for beneficial bacteria. In this review, we give an overview of advances made in food carbohydrate analysis. Overall, this review indicates the importance of carbohydrate analytical techniques in the quest to identify and isolate health-promoting carbohydrates to be used as additives in the functional foods industry.
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Affiliation(s)
- Leonie J Kiely
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland
| | - Rita M Hickey
- Teagasc Food Research Centre, Moorepark, Fermoy, Co. Cork, Ireland.
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Fuso A, Risso D, Rosso G, Rosso F, Manini F, Manera I, Caligiani A. Potential Valorization of Hazelnut Shells through Extraction, Purification and Structural Characterization of Prebiotic Compounds: A Critical Review. Foods 2021; 10:1197. [PMID: 34073196 PMCID: PMC8229101 DOI: 10.3390/foods10061197] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 05/05/2021] [Accepted: 05/22/2021] [Indexed: 11/24/2022] Open
Abstract
Hazelnuts are one of the most widely consumed nuts, but their production creates large quantities of by-products, especially shells, that could be upcycled into much more valuable products. Recent studies have shown that hazelnut shell hemicellulose is particularly rich in compounds that are potential precursors of xylooligosaccharides and arabino-xylooligosaccharides ((A)XOS), previously defined as emerging prebiotics very beneficial for human health. The production of these compounds on an industrial scale-up could have big consequences on the functional foods market. However, to produce (A)XOS from a lignocellulosic biomass, such as hazelnut shell, is not easy. Many methods for the extraction and the purification of these prebiotics have been developed, but they all have different efficiencies and consequences, including on the chemical structure of the obtained (A)XOS. The latter, in turn, is strongly correlated to the nutritional effects they have on health, which is why the optimization of the structural characterization process is also necessary. Therefore, this review aims to summarize the progress made by research in this field, so as to contribute to the exploitation of hazelnut waste streams through a circular economy approach, increasing the value of this biomass through the production of new functional ingredients.
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Affiliation(s)
- Andrea Fuso
- Food and Drug Department, University of Parma, Via Parco Area delle Scienze 17/A, 43124 Parma, Italy;
| | - Davide Risso
- Soremartec Italia Srl, Ferrero Group, 12051 Alba, Italy; (D.R.); (G.R.); (F.R.); (F.M.); (I.M.)
| | - Ginevra Rosso
- Soremartec Italia Srl, Ferrero Group, 12051 Alba, Italy; (D.R.); (G.R.); (F.R.); (F.M.); (I.M.)
| | - Franco Rosso
- Soremartec Italia Srl, Ferrero Group, 12051 Alba, Italy; (D.R.); (G.R.); (F.R.); (F.M.); (I.M.)
| | - Federica Manini
- Soremartec Italia Srl, Ferrero Group, 12051 Alba, Italy; (D.R.); (G.R.); (F.R.); (F.M.); (I.M.)
| | - Ileana Manera
- Soremartec Italia Srl, Ferrero Group, 12051 Alba, Italy; (D.R.); (G.R.); (F.R.); (F.M.); (I.M.)
| | - Augusta Caligiani
- Food and Drug Department, University of Parma, Via Parco Area delle Scienze 17/A, 43124 Parma, Italy;
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Pasha I, Ahmad F. Monosaccharide composition and carbohydrates linkage identification in cereal brans using UHPLC/QqQ-DMRM-MS. J Food Compost Anal 2021. [DOI: 10.1016/j.jfca.2020.103732] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Kozlowski AM, Yates EA, Roubroeks JP, Tømmeraas K, Smith AM, Morris GA. Hydrolytic Degradation of Heparin in Acidic Environments: Nuclear Magnetic Resonance Reveals Details of Selective Desulfation. ACS APPLIED MATERIALS & INTERFACES 2021; 13:5551-5563. [PMID: 33471995 DOI: 10.1021/acsami.0c20198] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Heparin is a complex glycosaminoglycan, derived mainly from pig mucosa, used therapeutically for its anticoagulant activity. Yet, owing largely to the chain complexity, the progressive effects of environmental conditions on heparin structure have not been fully described. A systematic study of the influence of acidic hydrolysis on heparin chain length and substitution has therefore been conducted. Changes in the sulfation pattern, monitored via 2D NMR, revealed initial de-N-sulfation of the molecule (pH 1/ 40 °C) and unexpectedly identified the secondary sulfate of iduronate as more labile than the 6-O-sulfate of glucosamine residues under these conditions (pH 1/ 60 °C). Additionally, the loss of sulfate groups, rather than depolymerization, accounted for most of the reduction in molecular weight. This provides an alternative route to producing partially 2-O-de-sulfated heparin derivatives that avoids using conventional basic conditions and may be of value in the optimization of processes associated with the production of heparin pharmaceuticals.
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Affiliation(s)
- Aleksandra M Kozlowski
- Biopolymer Research Centre, School of Applied Sciences, University of Huddersfield, Huddersfield HD1 3DH, United Kingdom
| | - Edwin A Yates
- Department of Biochemistry and Systems Biology, Institute of Systems, Molecular and Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, United Kingdom
| | | | | | - Alan M Smith
- Biopolymer Research Centre, School of Applied Sciences, University of Huddersfield, Huddersfield HD1 3DH, United Kingdom
| | - Gordon A Morris
- Biopolymer Research Centre, School of Applied Sciences, University of Huddersfield, Huddersfield HD1 3DH, United Kingdom
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Shen L, Chen R, Wang J, Fan L, Cui L, Zhang Y, Cheng J, Wu X, Li J, Zeng W. Biosorption behavior and mechanism of cadmium from aqueous solutions by Synechocystis sp. PCC6803. RSC Adv 2021; 11:18637-18650. [PMID: 35480929 PMCID: PMC9033491 DOI: 10.1039/d1ra02366g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2021] [Accepted: 05/16/2021] [Indexed: 02/03/2023] Open
Abstract
Cyanobacteria are promising adsorbents that are widely used for heavy metal removal in aqueous solutions. However, the underlying adsorption mechanism of Synechocystis sp. PCC6803 is currently unclear. In this study, the adsorption behavior and mechanism of cadmium (Cd2+) were investigated. Batch biosorption experiments showed that the optimal adsorption conditions were pH 7.0, 30 °C, 15 min, and an initial ion concentration of 4.0 mg L−1. The adsorption process fitted well with the pseudo-second order kinetic model, mainly based on chemisorption. Complexation of Cd2+ with carboxyl, hydroxyl, carbonyl, and amido groups was demonstrated by Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy and X-ray photoelectron spectroscopy (XPS) analyses. Scanning electron microscopy (SEM), transmission electron microscopy (TEM), and energy-dispersive X-ray spectrometry (EDX) analyses confirmed the presence of Cd2+ on the cyanobacterial cell surface and intracellularly. Cd2+ could lead to reactive oxygen species (ROS) accumulation and photosynthesis inhibition in cyanobacterial cells, and glutathione (GSH) played an important role in alleviating Cd2+ toxicity. Analyses of three-dimensional fluorescence spectroscopy (3D-EEM) and high performance anion exchange chromatography-pulsed amperometric detection (HPAEC-PAD) revealed the changes of the composition and content of EPS after Cd2+ adsorption, respectively. Real-time quantitative polymerase chain reaction (RT-qPCR) revealed the potential molecular regulatory mechanisms involved in Cd2+ biosorption. These results revealed the adsorption mechanism of Cd2+ by Synechocystis sp. PCC6803 and provided theoretical guidance for insight into the biosorption mechanisms of heavy metals by other strains. The results of extracellular polymeric substances (EPS) extraction, physiological and biochemical determination and gene expression revealed the adsorption mechanism of Synechocystis sp. PCC6803 under cadmium stress.![]()
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Affiliation(s)
- Li Shen
- School of Minerals Processing and Bioengineering
- Central South University
- Changsha 410083
- China
- Key Laboratory of Biometallurgy
| | - Ran Chen
- School of Minerals Processing and Bioengineering
- Central South University
- Changsha 410083
- China
| | - Junjun Wang
- School of Metallurgy and Environment
- Central South University
- Changsha 410083
- China
| | - Ling Fan
- School of Minerals Processing and Bioengineering
- Central South University
- Changsha 410083
- China
| | - Linlin Cui
- School of Minerals Processing and Bioengineering
- Central South University
- Changsha 410083
- China
| | - Yejuan Zhang
- School of Minerals Processing and Bioengineering
- Central South University
- Changsha 410083
- China
| | - Jinju Cheng
- School of Minerals Processing and Bioengineering
- Central South University
- Changsha 410083
- China
| | - Xueling Wu
- School of Minerals Processing and Bioengineering
- Central South University
- Changsha 410083
- China
- Key Laboratory of Biometallurgy
| | - Jiaokun Li
- School of Minerals Processing and Bioengineering
- Central South University
- Changsha 410083
- China
- Key Laboratory of Biometallurgy
| | - Weimin Zeng
- School of Minerals Processing and Bioengineering
- Central South University
- Changsha 410083
- China
- Key Laboratory of Biometallurgy
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Crha T, Pazourek J. Rapid HPLC Method for Determination of Isomaltulose in the Presence of Glucose, Sucrose, and Maltodextrins in Dietary Supplements. Foods 2020; 9:foods9091164. [PMID: 32846904 PMCID: PMC7555359 DOI: 10.3390/foods9091164] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2020] [Revised: 08/11/2020] [Accepted: 08/15/2020] [Indexed: 02/07/2023] Open
Abstract
This paper presents a rapid HPLC method for the separation of isomaltulose (also known as Palatinose) from other common edible carbohydrates such as sucrose, glucose, and maltodextrins, which are commonly present in food and dietary supplements. This method was applied to determine isomaltulose in selected food supplements for special diets and athletic performance. Due to the selectivity of the separation system, this method can also be used for rapid profiling analysis of mono-, di-, and oligosaccharides in food.
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