1
|
Wang H, Fan T, Zeng Z, Chen Z, Lu M, Zhou M, Qin X, Liu X. Use of ozone oxidation in combination with deacetylation for improving the structure and gelation properties of konjac glucomannan. Food Chem 2024; 453:139599. [PMID: 38788640 DOI: 10.1016/j.foodchem.2024.139599] [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: 01/31/2024] [Revised: 04/18/2024] [Accepted: 05/07/2024] [Indexed: 05/26/2024]
Abstract
In this study, oxidized deacetylated konjac glucomannans with different degrees of oxidation were prepared by a combination of deacetylation and ozone oxidation. Carboxyl groups were found to be introduced into the modified konjac glucomannan while acetyl groups were removed. The backbone, branched chains, and crystal structure of modified konjac glucomannan were not significantly affected. The whiteness was enhanced to 97-99 % and the thermal degradation temperature was up to 250 °C after modification. The solubility of the modified konjac glucomannan (oxidized for 60 min) was significantly increased to 84.56 % (p < 0.05), while its viscosity and swelling power were notably decreased owing to the changes in molecular weight (from 106 to 104) and functional groups. Rheological analysis showed that oxidized deacetylated konjac glucomannan has the ability to form soft-textured gels and the potential to develop dysphagia foods. Future studies should focus on the gelation mechanisms of oxidized deacetylated konjac glucomannan.
Collapse
Affiliation(s)
- Haoyuan Wang
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Tianqin Fan
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Zhilong Zeng
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Zhaojun Chen
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Manman Lu
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Min Zhou
- College of Food Science, Southwest University, Chongqing 400715, China
| | - Xiaoli Qin
- College of Food Science, Southwest University, Chongqing 400715, China.
| | - Xiong Liu
- College of Food Science, Southwest University, Chongqing 400715, China.
| |
Collapse
|
2
|
Jin H, Yao L, Wang S, Xia P, Hou T, Li B, Li J. Effects of KGM and Degradation Products on Appetite Regulation and Energy Expenditure in High-Fat-Diet Mice via the Adipocyte-Hypothalamus Axis. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:15765-15777. [PMID: 38970495 DOI: 10.1021/acs.jafc.4c03819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/08/2024]
Abstract
Konjac glucomannan (KGM), high-viscosity dietary fiber, is utilized in weight management. Previous investigations on the appetite-suppressing effects of KGM have centered on intestinal responses to nutrients and gastric emptying rates, with less focus on downstream hypothalamic neurons of satiety hormones. In our studies, the molecular mechanisms through which KGM and its degradation products influence energy homeostasis via the adipocyte-hypothalamic axis have been examined. It was found that high-viscosity KGM more effectively stimulates enteroendocrine cells to release glucagon-like peptide-1 (GLP-1) and reduces ghrelin production, thereby activating hypothalamic neurons and moderating short-term satiety. Conversely, low-viscosity DKGM has been shown to exhibit stronger anti-inflammatory properties in the hypothalamus, enhancing hormone sensitivity and lowering the satiety threshold. Notably, both KGM and DKGM significantly reduced leptin signaling and fatty acid signaling in adipose tissue and activated brown adipose tissue thermogenesis to suppress pro-opiomelanocortin (POMC) expression and activate agouti-related protein (AgRP) expression, thereby reducing food intake and increasing energy expenditure. Additionally, high-viscosity KGM has been found to activate the adipocyte-hypothalamus axis more effectively than DKGM, thereby promoting greater daily energy expenditure. These findings provide novel insights into the adipocyte-hypothalamic axis for KGM to suppress appetite and reduce weight.
Collapse
Affiliation(s)
- Hong Jin
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Lanlan Yao
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Shenwan Wang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Pengkui Xia
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Tao Hou
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Bin Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| | - Jing Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
- Key Laboratory of Environment Correlative Dietology, Ministry of Education, Huazhong Agricultural University, Wuhan 430070, China
| |
Collapse
|
3
|
Yin D, Zhong Y, Liu H, Hu J. Lipid metabolism regulation by dietary polysaccharides with different structural properties. Int J Biol Macromol 2024; 270:132253. [PMID: 38744359 DOI: 10.1016/j.ijbiomac.2024.132253] [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: 01/24/2024] [Revised: 04/28/2024] [Accepted: 05/07/2024] [Indexed: 05/16/2024]
Abstract
Lipid metabolism plays an important role in energy homeostasis maintenance in response to stress. Nowadays, hyperlipidemia-related chronic diseases such as obesity, diabetes, atherosclerosis, and fatty liver pose significant health challenges. Dietary polysaccharides (DPs) have gained attention for their effective lipid-lowering properties. This review examines the multifaceted mechanisms that DPs employ to lower lipid levels in subjects with hyperlipidemia. DPs could directly inhibit lipid intake and absorption, promote lipid excretion, and regulate key enzymes involved in lipid metabolism pathways, including triglyceride and cholesterol anabolism and catabolism, fatty acid oxidation, and bile acid synthesis. Additionally, DPs indirectly improve lipid homeostasis by modulating gut microbiota composition and alleviating oxidative stress. Moreover, the lipid-lowering mechanisms of particular structural DPs (including β-glucan, pectin, glucomannan, inulin, arabinoxylan, and fucoidan) are summarized. The relationship between the structure and lipid-lowering activity of DPs is also discussed based on current researches. Finally, potential breakthroughs and future directions in the development of DPs in lipid-lowering activity are discussed. The paper could provide a reference for further exploring the mechanism of DPs for lipid regulations and utilizing DPs as lipid-lowering dietary ingredients.
Collapse
Affiliation(s)
- Dafang Yin
- State Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, Jiangxi 330047, China
| | - Yadong Zhong
- State Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, Jiangxi 330047, China
| | - Huan Liu
- State Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, Jiangxi 330047, China
| | - Jielun Hu
- State Key Laboratory of Food Science and Resources, China-Canada Joint Laboratory of Food Science and Technology (Nanchang), Key Laboratory of Bioactive Polysaccharides of Jiangxi Province, Nanchang University, 235 Nanjing East Road, Nanchang, Jiangxi 330047, China.
| |
Collapse
|
4
|
Xia P, Zheng Y, Sun L, Chen W, Shang L, Li J, Hou T, Li B. Regulation of glycose and lipid metabolism and application based on the colloidal nutrition science properties of konjac glucomannan: A comprehensive review. Carbohydr Polym 2024; 331:121849. [PMID: 38388033 DOI: 10.1016/j.carbpol.2024.121849] [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: 11/15/2023] [Revised: 01/10/2024] [Accepted: 01/19/2024] [Indexed: 02/24/2024]
Abstract
The physicochemical properties of dietary fiber in the gastrointestinal tract, such as hydration properties, adsorption properties, rheological properties, have an important influence on the physiological process of host digestion and absorption, leading to the differences in satiety and glucose and lipid metabolisms. Based on the diversified physicochemical properties of konjac glucomannan (KGM), it is meaningful to review the relationship of structural characteristics, physicochemical properties and glycose and lipid metabolism. Firstly, this paper bypassed the category of intestinal microbes, and explained the potential of dietary fiber in regulating glucose and lipid metabolism during nutrient digestion and absorption from the perspective of colloidal nutrition. Secondly, the modification methods of KGM to regulate its physicochemical properties were discussed and the relationship between KGM's molecular structure types and glycose and lipid metabolism were summarized. Finally, based on the characteristics of KGM, the application of KGM in the main material and ingredients of fat reduction food was reviewed. We hope this work could provide theoretical basis for the study of dietary fiber colloid nutrition science.
Collapse
Affiliation(s)
- Pengkui Xia
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Ying Zheng
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Li Sun
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Wenxin Chen
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China
| | - Longchen Shang
- College of Biological and Food Engineering, Hubei Minzu University, Enshi 445000, China
| | - Jing Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen 518000, China; Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China
| | - Tao Hou
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen 518000, China.
| | - Bin Li
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China; Shenzhen Institute of Nutrition and Health, Huazhong Agricultural University, Shenzhen 518000, China; Shenzhen Branch, Guangdong Laboratory for Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, Shenzhen 518000, China.
| |
Collapse
|
5
|
Citarrella R, Chianetta R, Amodeo S, Mirarchi L, Licata A, Soresi M, Veronese N, Barbagallo M, Giannitrapani L. Effectiveness of a Food Supplement Based on Glucomannan, D-Chiro-Inositol, Cinnamomum zeylanicum Blume and Inulin in Patients with Metabolic Syndrome. Nutrients 2024; 16:249. [PMID: 38257142 PMCID: PMC10819678 DOI: 10.3390/nu16020249] [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: 11/14/2023] [Revised: 01/07/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024] Open
Abstract
Metabolic syndrome (MetS) is associated with cardiovascular risk factors, such as insulin resistance, dyslipidaemia, hypertension and abdominal obesity. Given the growing need to investigate food supplements with positive health effects, this study was aimed at testing the benefits of a specific supplement for people with MetS. Fifty-eight subjects with MetS and T2DM or impaired glucose tolerance assuming metformin, were randomly assigned to take a food supplement of glucomannan, D-chiro-inositol, Cinnamomum zeylanicum blume and inulin at a daily fixed dose of 4 g orally for four months. Body weight, waist circumference, plasma lipid profile (total cholesterol, LDL, HDL and triglyc-erides), plasma glycaemic profile and visceral adiposity index (VAI) were measured at baseline and after four months of supplementation. After 16 weeks, in subjects with T2DM or insulin resistance who took the supplement (+ metformin), there was a significant reduction in body weight and BMI (p < 0.0001), serum insulin (p < 0.05) and the HOMA index (p < 0.01), as well as in the lipaemic pattern, with a significant improvement in total serum cholesterol (p < 0.005), triglycerides (p < 0.03) and LDL (p < 0.02). Our study shows that the food supplement tested is a valid and safe alternative therapeutic approach in the management of MetS and all its resulting risk factors, as its efficacy has been demonstrated across anthropometric, glucose, lipid and hepatic parameters.
Collapse
Affiliation(s)
- Roberto Citarrella
- Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy; (R.C.); (R.C.); (S.A.); (A.L.); (M.S.); (N.V.)
| | - Roberta Chianetta
- Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy; (R.C.); (R.C.); (S.A.); (A.L.); (M.S.); (N.V.)
| | - Simona Amodeo
- Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy; (R.C.); (R.C.); (S.A.); (A.L.); (M.S.); (N.V.)
| | - Luigi Mirarchi
- Department of Internal Medicine, National Relevance and High Specialization Hospital Trust ARNAS Civico, Di Cristina, Benfratelli, 90127 Palermo, Italy;
| | - Anna Licata
- Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy; (R.C.); (R.C.); (S.A.); (A.L.); (M.S.); (N.V.)
| | - Maurizio Soresi
- Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy; (R.C.); (R.C.); (S.A.); (A.L.); (M.S.); (N.V.)
| | - Nicola Veronese
- Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy; (R.C.); (R.C.); (S.A.); (A.L.); (M.S.); (N.V.)
| | - Mario Barbagallo
- Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy; (R.C.); (R.C.); (S.A.); (A.L.); (M.S.); (N.V.)
| | - Lydia Giannitrapani
- Department of Health Promotion Sciences, Maternal and Infant Care, Internal Medicine and Medical Specialties (PROMISE), University of Palermo, 90127 Palermo, Italy; (R.C.); (R.C.); (S.A.); (A.L.); (M.S.); (N.V.)
- Institute for Biomedical Research and Innovation (IRIB), National Research Council, 90146 Palermo, Italy
| |
Collapse
|
6
|
Li S, Shang L, Chen Y, Song R, Li J, Li B. Preparation of a novel expandable konjac fiber at different freezing temperatures and exploration of its digestion regulation functions. Food Funct 2024; 15:125-138. [PMID: 38047712 DOI: 10.1039/d3fo03814a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2023]
Abstract
A new form of konjac fiber was successfully prepared, and it could instantaneously expand when in contact with the digestive fluid. The expanded konjac fiber could inhibit the digestion of the ingested food by competing with the substrate for digestive enzymes and space. The konjac fiber with desirable physical properties was obtained at 4 different freezing temperatures (-20 °C, -40 °C, -80 °C, and -196 °C), and the digestion regulation mechanisms of these fibers were systematically explored. The results showed that the konjac fiber prepared at -20 °C displayed an outstanding performance in delaying gastric emptying and preventing intestinal starch hydrolysis, while the fiber prepared under liquid nitrogen conditions (-196 °C) showed the weakest digestion regulation ability. However, the digestion regulation ability of this novel fiber was highly related to the food rheological property, and it exhibited a stronger interference effect on high-viscosity food. Our novel konjac fibers exhibited a great digestion regulation potential. Our findings provide valuable references for the development of dietary fiber-based satiety-enhancing functional foods.
Collapse
Affiliation(s)
- Sha 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
| | - Longchen Shang
- College of Biological and Food Engineering, Hubei Minzu University, Enshi 445000, China
| | - Yuanyuan Chen
- 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
| | - Rong Song
- 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
| | - 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
| |
Collapse
|
7
|
Ueno H, Haraguchi N, Azuma M, Shiiya T, Noda T, Ebihara E, Uehira Y, Uchida T, Sasaba K, Nakamura M, Uchimura N, Kita E, Umemura A, Nobe T, Sumoto E, Yano Y, Nakazato M. Active Consumption of Konjac and Konjac Products Improves Blood Glucose Control in Patients with Type 2 Diabetes Mellitus. JOURNAL OF THE AMERICAN NUTRITION ASSOCIATION 2023; 42:123-129. [PMID: 34843410 DOI: 10.1080/07315724.2021.2002739] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
OBJECTIVE Konjac is a food mainly consumed in Asian countries with high fiber and low energy. Although glucomannan, a component of konjac, have been used for several clinical studies, there is few reports using konjac itself. This study examined the effects of the active consumption of konjac in patients with type 2 diabetes mellitus (T2DM). METHODS The study included 26 Japanese patients with T2DM. Participants were recommended to take konjac at least once a day using free konjac products (various noodles, rice, and desserts) and plate konjac for 12 weeks. RESULTS HbA1c and fasting plasma glucose levels significantly decreased from 8.3 ± 0.9% to 8.0 ± 0.8% and from 173.2 ± 44.4 to 152.8 ± 36.7 mg/dL, respectively. No significant changes were observed in body weight and insulin resistance indices, but the index for insulin secretion significantly increased. Serum high molecular weight adiponectin levels significantly increased. Plasma ghrelin, leptin and glucagon-like peptide-1 levels tended to decrease (p = 0.084), decrease (p = 0.057) and increase (p = 0.071), respectively. Actual konjac intake positively correlated with age (r = 0.61, p = 0.001). Body weight and HbA1c significantly decreased in patients aged ≥50 years than in those aged <50 years, and the changes significantly inversely correlated with age. CONCLUSION Active consumption of konjac and konjac products seems to be a useful dietary therapy with multifaceted action for T2DM. Further studies with greater sample size and long-term are needed to confirm these findings.
Collapse
Affiliation(s)
- Hiroaki Ueno
- Division of Neurology, Respirology, Endocrinology and Metabolism, Faculty of Medicine, Department of Internal Medicine, University of Miyazaki, Miyazaki, Japan
| | - Naoki Haraguchi
- Faculty of Medicine, Department of Nutrition Management, University of Miyazaki Hospital, Miyazaki, Japan
| | - Mayumi Azuma
- Department of Internal Medicine, Miyazaki Prefectural Miyazaki Hospital, Miyazaki, Japan
| | - Tomomi Shiiya
- Department of Internal Medicine, Koga General Hospital, Miyazak, Japan
| | - Tomoho Noda
- Division of Neurology, Respirology, Endocrinology and Metabolism, Faculty of Medicine, Department of Internal Medicine, University of Miyazaki, Miyazaki, Japan
| | - Emi Ebihara
- Division of Neurology, Respirology, Endocrinology and Metabolism, Faculty of Medicine, Department of Internal Medicine, University of Miyazaki, Miyazaki, Japan
| | - Yudai Uehira
- Division of Neurology, Respirology, Endocrinology and Metabolism, Faculty of Medicine, Department of Internal Medicine, University of Miyazaki, Miyazaki, Japan
| | - Taisuke Uchida
- Division of Neurology, Respirology, Endocrinology and Metabolism, Faculty of Medicine, Department of Internal Medicine, University of Miyazaki, Miyazaki, Japan
| | - Keiko Sasaba
- Faculty of Medicine, Department of Nutrition Management, University of Miyazaki Hospital, Miyazaki, Japan
| | - Miyo Nakamura
- Faculty of Medicine, Department of Nutrition Management, University of Miyazaki Hospital, Miyazaki, Japan
| | - Naho Uchimura
- Faculty of Medicine, Department of Nutrition Management, University of Miyazaki Hospital, Miyazaki, Japan
| | - Emiko Kita
- Faculty of Medicine, Department of Nutrition Management, University of Miyazaki Hospital, Miyazaki, Japan
| | - Akemi Umemura
- Faculty of Medicine, Department of Nutrition Management, University of Miyazaki Hospital, Miyazaki, Japan
| | - Tomoko Nobe
- Faculty of Medicine, Department of Nutrition Management, University of Miyazaki Hospital, Miyazaki, Japan
| | - Eri Sumoto
- Faculty of Medicine, Department of Nutrition Management, University of Miyazaki Hospital, Miyazaki, Japan
| | - Yui Yano
- Faculty of Medicine, Department of Nutrition Management, University of Miyazaki Hospital, Miyazaki, Japan
| | - Masamitsu Nakazato
- Division of Neurology, Respirology, Endocrinology and Metabolism, Faculty of Medicine, Department of Internal Medicine, University of Miyazaki, Miyazaki, Japan
| |
Collapse
|
8
|
Fernandes ACS, Muxfeldt L, Motta NG, Skonieski C, Fagundes KR, Sandri G, de Chaves DB, Suthovski G, Gallina AL, Araujo SM, Benvegnú DM. Gummies candy enriched with Konjac glucomannan reduces hunger intensity and waist circumference of overweight individuals. Int J Biol Macromol 2023; 226:72-76. [PMID: 36435474 DOI: 10.1016/j.ijbiomac.2022.11.232] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Revised: 11/17/2022] [Accepted: 11/22/2022] [Indexed: 11/26/2022]
Abstract
Konjac glucomannan (KGM) is a herbal medicine with benefits in appetite control, body weight and biochemical parameters in overweight individuals. The objective of our work was to evaluate the effect of the consumption of gummy candy enriched with KGM on appetite, to evaluate anthropometric data, biochemical and oxidative stress markers in overweight individuals. Forty-two participants aged 18 to 45 years completed our randomized, double-blind, placebo-controlled clinical trial. Participants were randomly assigned to consume for fourteen days, 2 candies per day, containing 250 mg of KGM or identical-looking placebo candy with 250 mg of flaxseed meal, shortly after breakfast and dinner. As a result, we observed that there was a reduction in waist circumference and in the intensity of hunger/satisfaction of the participants who consumed KGM for fourteen days, and we believe that a longer consumption time as well as an increase dose of KGM contribute to even more satisfactory body results.
Collapse
Affiliation(s)
| | - Luana Muxfeldt
- Laboratório de Bioquímica - Universidade Federal da Fronteira Sul - UFFS, Campus Realeza, Realeza, PR, Brazil
| | - Neli Gehlen Motta
- Laboratório de Bioquímica - Universidade Federal da Fronteira Sul - UFFS, Campus Realeza, Realeza, PR, Brazil
| | - Calinca Skonieski
- Laboratório de Bioquímica - Universidade Federal da Fronteira Sul - UFFS, Campus Realeza, Realeza, PR, Brazil
| | - Karina Raquel Fagundes
- Laboratório de Bioquímica - Universidade Federal da Fronteira Sul - UFFS, Campus Realeza, Realeza, PR, Brazil
| | - Gabriela Sandri
- Laboratório de Bioquímica - Universidade Federal da Fronteira Sul - UFFS, Campus Realeza, Realeza, PR, Brazil
| | - Daniel Barbosa de Chaves
- Laboratório de Bioquímica - Universidade Federal da Fronteira Sul - UFFS, Campus Realeza, Realeza, PR, Brazil
| | - Gabriela Suthovski
- Laboratório de Bioquímica - Universidade Federal da Fronteira Sul - UFFS, Campus Realeza, Realeza, PR, Brazil
| | - André Lazarin Gallina
- Laboratório de Bioquímica - Universidade Federal da Fronteira Sul - UFFS, Campus Realeza, Realeza, PR, Brazil
| | - Stífani Machado Araujo
- Laboratório de Bioquímica - Universidade Federal da Fronteira Sul - UFFS, Campus Realeza, Realeza, PR, Brazil
| | - Dalila Moter Benvegnú
- Laboratório de Bioquímica - Universidade Federal da Fronteira Sul - UFFS, Campus Realeza, Realeza, PR, Brazil.
| |
Collapse
|
9
|
Lin JJ, Yang D, Ou SJL, Mak YY, Lee DPS, Lim KL, Tai ES, Liu MH, Khan SA. Creating texturally tuneable, low calorie and palatable noodle-like food assemblies via microfluidics. Food Hydrocoll 2022. [DOI: 10.1016/j.foodhyd.2022.107544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
|
10
|
Ye S, Zongo AWS, Shah BR, Li J, Li B. Konjac Glucomannan (KGM), Deacetylated KGM (Da-KGM), and Degraded KGM Derivatives: A Special Focus on Colloidal Nutrition. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2021; 69:12921-12932. [PMID: 34713703 DOI: 10.1021/acs.jafc.1c03647] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Konjac flour, mainly obtained and purified from the tubers ofAmorphophallus konjac C. Koch, yields a high molecular weight (Mw) and viscous hydrocolloidal polysaccharide: konjac glucomannan (KGM). KGM has been widely applied in the food industry as a thickening and gelation agent as a result of its unique colloidal properties of effective viscosity enhancement and thermal-irreversible gelling. This review first narrates the typical commercial KGM source species, the industrial production, and the purification process of KGM flour. The structural information on native KGM, gelation mechanisms of alkali-induced deacetylated KGM (Da-KGM) hydrogel, progress on degraded KGM derivatives, cryoprotection effect, and colloidal nutrition are highlighted. Finally, the regulatory requirements of konjac flour and KGM among different countries are briefly introduced. The fine structure and physicochemical properties of KGM can be regulated in a great range via the deacetylation or degradation reaction. Here, the relationship between the physicochemical properties, such as viscosity, solubility, gelation, and nutritional effects, of native KGM, Da-KGM, and degraded KGM derivatives was preliminary established, which would provide theoretical guidance for designing KGM-based products with certain nutritional needs.
Collapse
Affiliation(s)
- Shuxin Ye
- College of Food Science and Technology, Huazhong Agriculture University, Wuhan, Hubei 430070, People's Republic of China
| | - Abel Wend-Soo Zongo
- College of Food Science and Technology, Huazhong Agriculture University, Wuhan, Hubei 430070, People's Republic of China
| | - Bakht Ramin Shah
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Center of Aquaculture and Biodiversity of Hydrocenoses, Institute of Aquaculture and Protection of Waters, University of South Bohemia in Ceske Budejovice, Na Sádkách 1780, 370 05 České Budějovice, Czech Republic
| | - Jing Li
- College of Food Science and Technology, Huazhong Agriculture University, Wuhan, Hubei 430070, People's Republic of China
| | - Bin Li
- College of Food Science and Technology, Huazhong Agriculture University, Wuhan, Hubei 430070, People's Republic of China
- Hubei Collaborative Innovation Centre for Industrial Fermentation, Hubei University of Technology, Wuhan, Hubei 430068, People's Republic of China
- Key Laboratory of Environment Correlative Dietology (Huazhong Agricultural University), Ministry of Education, Wuhan, Hubei 430070, People's Republic of China
| |
Collapse
|
11
|
Konjac glucomannan molecular and rheological properties that delay gastric emptying and improve the regulation of appetite. Food Hydrocoll 2021. [DOI: 10.1016/j.foodhyd.2021.106894] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
12
|
Munekata PE, Pérez-Álvarez JÁ, Pateiro M, Viuda-Matos M, Fernández-López J, Lorenzo JM. Satiety from healthier and functional foods. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.05.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
|
13
|
Potato Fibers Have Positive Effects on Subjective Appetite Sensations in Healthy Men, but Not on Fecal Fat Excretion: A Randomized Controlled Single-Blind Crossover Trial. Nutrients 2020; 12:nu12113496. [PMID: 33203008 PMCID: PMC7697495 DOI: 10.3390/nu12113496] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/2020] [Revised: 11/04/2020] [Accepted: 11/11/2020] [Indexed: 12/14/2022] Open
Abstract
Dietary fibers can affect appetite and gut metabolism, but the effect of the novel potato fibers FiberBind and rhamnogalacturonan I (RG-I) is unknown. We, therefore, aimed to investigate the effect of daily intake of FiberBind and RG-I on appetite sensations and fecal fat excretion. In a single-blinded, randomized, three-way crossover trial, wheat buns with FiberBind, RG-I, or low fiber (control) were consumed by 18 healthy men during a 21-day period. Appetite sensation and blood samples during a 3 h meal test, fecal fat content, and ad libitum energy intake were assessed after each period. Compared to RG-I and control, FiberBind caused a higher composite satiety score (6% ± 2% and 5% ± 2%), lower prospective food consumption (5% ± 2% and 6% ± 2%), and lower desire to eat (7% ± 3% and 6% ± 3%) (all p < 0.05). FiberBind also caused higher satiety (6% ± 2%) and fullness (9% ± 3%) compared to RG-I (all p < 0.01). No effects on fecal fat excretion or energy intake were found. The RG-I fiber caused higher postprandial glucose concentration compared to FiberBind (p < 0.05) and higher insulin concentration at 180 min compared to control (p < 0.05). Compared to the control, RG-I and FiberBind lowered peak insulin concentration (both p < 0.05) and delayed time to peak for glucose (both p < 0.05). In conclusion, FiberBind intake could be beneficial for appetite regulation, but neither FiberBind nor RG-I affected fecal fat excretion or energy intake.
Collapse
|
14
|
A pilot study to assess the effect of a fibre and mineral formulation on satiety and satiation when taken as part of a calorie restriction diet in overweight and obese women. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.104157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
|
15
|
Yu AHM, Phoon PY, Ng GCF, Henry CJ. Physicochemical characteristics of green banana flour and its use in the development of konjac-green banana noodles. J Food Sci 2020; 85:3026-3033. [PMID: 32940358 DOI: 10.1111/1750-3841.15458] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2020] [Revised: 05/19/2020] [Accepted: 08/27/2020] [Indexed: 11/29/2022]
Abstract
Asian noodles typically have high glycemic index, and an unbalanced diet heavily laden with carbohydrates has been linked to weight gain and obesity. Shirataki noodles from Japan is made from konjac glucomannan (KGM) and water and is widely known for its multiple health benefits and ability to promote satiety. However, it imparts negligible nutritional value due to its low energy content. In this study, the feasibility of making low calorie, gluten-free Shirataki noodles with improved nutritional value was shown by adding green banana flour (GBF), an underutilized subproduct of low commercial value and significance in the food industry. The optimal KGM-GBF noodles (with 6% w/w KGM, 35% w/w GBF) had 27% lower total energy content, 13% lower carbohydrate content, 5.4% higher fiber content, 2% higher ash content, and 80% hardness (as measured by texture profile analysis) when compared to commercial yellow alkaline wheat noodles. Multiple regression analysis showed that KGM level was a more influential factor than GBF level on the hardness of cooked KGM-GBF noodles (P < 0.01). The compatibility of GBF with KGM in noodle making lay in GBF's high gelatinizing and pasting temperatures, which allowed optimal KGM hydration during dough formation to develop the primary network structure in the noodles. Through this study, the potential of GBF as a functional food ingredient in product processing and nutrition enhancement was demonstrated. PRACTICAL APPLICATION: The addition of green banana flour can improve the nutritional value and sensorial properties of konjac (Shirataki) noodles. This offers a gluten-free and low glycemic index alternative to wheat and starch noodles currently available commercially. A novel method of noodle-making to create KGM noodles, without the use of high alkalinity, was developed.
Collapse
Affiliation(s)
- Ashley Hui Min Yu
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Singapore, 138669, Singapore
| | - Pui Yeu Phoon
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Singapore, 138669, Singapore
| | - Grace Cui Fang Ng
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Singapore, 138669, Singapore
| | - Christiani Jeyakumar Henry
- Singapore Institute of Food and Biotechnology Innovation (SIFBI), Agency for Science, Technology and Research (A*STAR), Singapore, 138669, Singapore.,Department of Biochemistry, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, 117596, Singapore
| |
Collapse
|
16
|
Abstract
The satiating efficiency of food has been increasingly quantified using the Satiety Quotient (SQ). The SQ integrates both the energy content of food ingested during a meal and the associated change in appetite sensations. This systematic review examines the available evidence regarding its methodological use and clinical utility. A literature search was conducted in six databases considering studies from 1900 to April 2020 that used SQ in adults, adolescents and children. All study designs were included. From the initial 495 references found, fifty-two were included. Of the studies included, thirty-three were acute studies (twenty-nine in adults and four in adolescents) and nineteen were longitudinal studies in adults. A high methodological heterogeneity in the application of the SQ was observed between studies. Five main utilisations of the SQ were identified: its association with (i) energy intake; (ii) anthropometric variables; (iii) energy expenditure/physical activity; (iv) sleep quality and quantity and (v) to classify individuals by their satiety responsiveness (i.e. low and high satiety phenotypes). Altogether, the studies suggest the SQ as an interesting clinical tool regarding the satiety responsiveness to a meal and its changes in responses to weight loss in adults. The SQ might be a reliable clinical indicator in adults when it comes to both obesity prevention and treatment. There is a need for more standardised use of the SQ in addition to further studies to investigate its validity in different contexts and populations, especially among children and adolescents.
Collapse
|
17
|
Della Corte T, Gentile S, Guarino G, Satta E, Romano C, Alfarone C, Strollo F. HOW to make a mix of low glycemic index flours for a good Neapolitan pizza for patients with diabetes. Diabetes Metab Syndr 2020; 14:459-462. [PMID: 32380405 DOI: 10.1016/j.dsx.2020.04.030] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 04/18/2020] [Accepted: 04/21/2020] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND AIMS Our recent data document that a low glycemic index (LGI) Neapolitan pizza prepared with a mix of Kamut and whole wheat flours plus Glucomannan, (i) has a lower impact on postprandial hyperglycemic spikes than pizza made of whole wheat flour, (ii) is pleasant and appreciated as traditional one and (iii) does not cause any gastro-intestinal troubles. The aim of our study was to describe the validation process underlying the identification of the right mix of those elements for a LGI pizza preventing gastro-intestinal disturbances. METHODS we described all procedures followed to make good products with different combinations of the three components and a series of tests made by four well-experienced professional pasta-making masters, one nutritionist, five diabetologists, one nurse and twenty volunteers with T1DM. RESULTS we could identify the best workable and most suitable flour mix to achieve both pleasant taste and low glycemic impact proving to be efficient in real-life twin paper providing results from diabetic patients. CONCLUSIONS this kind of food will certainly help people with diabetes eat pizza without risking any serious deterioration of their own glucose control while fully enjoying socially active life.
Collapse
Affiliation(s)
- T Della Corte
- Campania University "Luigi Vanvitelli", Naples, Italy; Nefrocenter Research and Nyx Start-UP Study Group, Italy.
| | - S Gentile
- Campania University "Luigi Vanvitelli", Naples, Italy; Diabetes Unit, AID Stabia, Castellammare di Stabia, Italy; Nefrocenter Research and Nyx Start-UP Study Group, Italy
| | - G Guarino
- Campania University "Luigi Vanvitelli", Naples, Italy
| | - E Satta
- Dialysis Unit, Nefrocenter, Nola, Italy; Nefrocenter Research and Nyx Start-UP Study Group, Italy
| | - C Romano
- Nefrocenter Research and Nyx Start-UP Study Group, Italy
| | | | - F Strollo
- Elle-Di and San Raffaele Research Institute, Rome, Italy
| |
Collapse
|
18
|
Estruch R, Vendrell E, Ruiz-León AM, Casas R, Castro-Barquero S, Alvarez X. Reformulation of Pastry Products to Improve Effects on Health. Nutrients 2020; 12:nu12061709. [PMID: 32517354 PMCID: PMC7352585 DOI: 10.3390/nu12061709] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Revised: 06/02/2020] [Accepted: 06/05/2020] [Indexed: 12/15/2022] Open
Abstract
Obesity is increasing at an alarming rate and has been described as a global pandemic. This increase has several explanations, including an increase in caloric intake, low levels of physical activity and the nutritional composition of our diets. In addition to public health policies based on healthy dietary patterns and recommendations based on the Mediterranean and other healthy diets, food reformulation, especially of commonly consumed processed foods, such as bakery products and pastries, is needed in the fight against obesity. Among nutritional reformulation strategies, reductions in caloric density, salt, added sugar, saturated and trans-fats are important in order to reduce the associated risk of developing chronic diseases, including cardiovascular diseases, diabetes and cancer.
Collapse
Affiliation(s)
- Ramon Estruch
- Department of Internal Medicine, Hospital Clinic, Institut d’Investigació Biomèdica August Pi i Sunyer (IDIBAPS), University of Barcelona, Villarroel 170, 08036 Barcelona, Spain; (A.M.R.-L.); (R.C.); (S.C.-B.)
- CIBER 06/03: Fisiopatología de la Obesidad y la Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain
- Correspondence: ; Tel.: +34-93-227-5539; Fax: +34-93-227-9236
| | - Eulàlia Vendrell
- DALLANT, SA, Carrer de Laureà Miró 392, 08980 Sant Feliu de Llobregat, Barcelona, Spain; (E.V.); (X.A.)
| | - Ana María Ruiz-León
- Department of Internal Medicine, Hospital Clinic, Institut d’Investigació Biomèdica August Pi i Sunyer (IDIBAPS), University of Barcelona, Villarroel 170, 08036 Barcelona, Spain; (A.M.R.-L.); (R.C.); (S.C.-B.)
- CIBER 06/03: Fisiopatología de la Obesidad y la Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Rosa Casas
- Department of Internal Medicine, Hospital Clinic, Institut d’Investigació Biomèdica August Pi i Sunyer (IDIBAPS), University of Barcelona, Villarroel 170, 08036 Barcelona, Spain; (A.M.R.-L.); (R.C.); (S.C.-B.)
- CIBER 06/03: Fisiopatología de la Obesidad y la Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Sara Castro-Barquero
- Department of Internal Medicine, Hospital Clinic, Institut d’Investigació Biomèdica August Pi i Sunyer (IDIBAPS), University of Barcelona, Villarroel 170, 08036 Barcelona, Spain; (A.M.R.-L.); (R.C.); (S.C.-B.)
- CIBER 06/03: Fisiopatología de la Obesidad y la Nutrición, Instituto de Salud Carlos III, 28029 Madrid, Spain
| | - Xavier Alvarez
- DALLANT, SA, Carrer de Laureà Miró 392, 08980 Sant Feliu de Llobregat, Barcelona, Spain; (E.V.); (X.A.)
| |
Collapse
|
19
|
Della-Corte T, Gentile S, Di Blasi V, Guarino G, Corigliano M, Cozzolino G, Fasolino A, Martino C, Improta MR, Oliva D, Lamberti C, Vecchiato A, Vaia S, Satta E, Romano C, Alfarone C, Strollo F. Is pizza sutable to type 1 diabetes? A real life identification of best compromise between taste and low glycemic index in patients on insulin pump. Diabetes Metab Syndr 2020; 14:225-227. [PMID: 32240944 DOI: 10.1016/j.dsx.2020.03.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/18/2019] [Revised: 03/06/2020] [Accepted: 03/07/2020] [Indexed: 02/06/2023]
Abstract
Opposed to whole wheat (WWP), traditional pizza (TP) is loved by patients with type 1 diabetes mellitus (T1DM) despite causing hyperglycemia. 50 well-trained T1DM patients had higher glucose levels after TP than after WWP or mixed flour pizza, which however was tasty, digestible and metabolically appropriate to break diet monotony.
Collapse
Affiliation(s)
- T Della-Corte
- Campania University "Luigi Vanvitelli", Naples, Italy.
| | - S Gentile
- Campania University "Luigi Vanvitelli", Naples, Italy; Diabetes Unit, AID Stabia, Castellammare di Stabia, Italy; Nefrocenter Research and Nyx Start-UP Study Group, Italy
| | | | - G Guarino
- Campania University "Luigi Vanvitelli", Naples, Italy
| | - M Corigliano
- Diabetes Unit, AID Oplonti, Torre Annunziata, Italy
| | | | - A Fasolino
- Diabetes Unit, AID Stabia, Castellammare di Stabia, Italy
| | - C Martino
- Diabetes Unit, AID Stabia, Castellammare di Stabia, Italy
| | - M R Improta
- Diabetes Unit, AID Stabia, Castellammare di Stabia, Italy
| | - D Oliva
- Diabetes Unit, AID Cava Dè Tirreni, Italy
| | - C Lamberti
- Diabetes Unit, AID Nocera Inferiore, Italy
| | | | - S Vaia
- Neuro-diagnostic Institute, Naples, Italy
| | - E Satta
- Dialysis Unit, Nefrocenter, Nola, Italy
| | - C Romano
- Nefrocenter Research and Nyx Start-UP Study Group, Italy
| | | | - F Strollo
- Elle-Di and San Raffaele Research Institute, Rome, Italy
| |
Collapse
|
20
|
Jovanovski E, Mazhar N, Komishon A, Khayyat R, Li D, Blanco Mejia S, Khan T, L Jenkins A, Smircic-Duvnjak L, L Sievenpiper J, Vuksan V. Can dietary viscous fiber affect body weight independently of an energy-restrictive diet? A systematic review and meta-analysis of randomized controlled trials. Am J Clin Nutr 2020; 111:471-485. [PMID: 31897475 DOI: 10.1093/ajcn/nqz292] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Accepted: 10/30/2019] [Indexed: 01/01/2023] Open
Abstract
BACKGROUND The role of dietary fiber in obesity management remains debatable. Evidence suggests that intake of viscous fiber may have the potential to facilitate weight loss. OBJECTIVE We aimed to summarize and quantify the effects of viscous fiber on body weight, BMI, waist circumference, and body fat, independent of calorie restriction, through a systematic review and meta-analysis of randomized controlled trials. METHODS Trials ≥4 wk in duration that assessed the effect of viscous fiber supplemented to an ad libitum diet along with comparator diets were included. MEDLINE, EMBASE, and the Cochrane library were searched through 24 July, 2019. Two independent reviewers extracted relevant data. Data were pooled using the generic inverse variance method and random-effects models and expressed as mean differences with 95% CIs. Interstudy heterogeneity was assessed (Cochran Q statistic) and quantified (I2 statistic). The overall certainty of evidence was explored using the Grading of Recommendations, Assessment, Development, and Evaluation (GRADE) approach. RESULTS Findings from 62 trials (n = 3877) showed that viscous fiber reduced mean body weight (-0.33 kg; 95% CI: -0.51, -0.14 kg; P = 0.004), BMI (in kg/m2) (-0.28; 95% CI: -0.42, -0.14; P = 0.0001), and waist circumference (-0.63 cm; 95% CI: -1.11, -0.16 cm; P = 0.008), with no change in body fat (-0.78%; 95% CI: -1.56%, 0.00%; P = 0.05) when consumed with an ad libitum diet. Greater reductions in body weight were observed in overweight individuals and those with diabetes and metabolic syndrome. The certainty of evidence was graded moderate for body weight, high for waist circumference and body fat, and low for BMI. CONCLUSIONS Dietary viscous fiber modestly yet significantly improved body weight and other parameters of adiposity independently of calorie restriction. Future trials are warranted to address the inconsistency and imprecision identified through GRADE and to determine long-term weight-loss sustainability.This systematic review and meta-analysis was registered at clinicaltrials.gov as NCT03257449.
Collapse
Affiliation(s)
- Elena Jovanovski
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Nourah Mazhar
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Allison Komishon
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Rana Khayyat
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Dandan Li
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada
| | - Sonia Blanco Mejia
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Toronto 3D Knowledge Synthesis & Clinical Trials Unit, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Tauseef Khan
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Toronto 3D Knowledge Synthesis & Clinical Trials Unit, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Alexandra L Jenkins
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada
| | | | - John L Sievenpiper
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Toronto 3D Knowledge Synthesis & Clinical Trials Unit, St. Michael's Hospital, Toronto, Ontario, Canada.,Division of Endocrinology and Metabolism, Department of Medicine, St Michael's Hospital, Toronto, Ontario, Canada.,Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
| | - Vladimir Vuksan
- Clinical Nutrition and Risk Factor Modification Centre, St. Michael's Hospital, Toronto, Ontario, Canada.,Department of Nutritional Sciences, Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada.,Division of Endocrinology and Metabolism, Department of Medicine, St Michael's Hospital, Toronto, Ontario, Canada.,Li Ka Shing Knowledge Institute, St. Michael's Hospital, Toronto, Ontario, Canada
| |
Collapse
|
21
|
Troisi J, Cinque C, Giugliano L, Symes S, Richards S, Adair D, Cavallo P, Sarno L, Scala G, Caiazza M, Guida M. Metabolomic change due to combined treatment with myo-inositol, D-chiro-inositol and glucomannan in polycystic ovarian syndrome patients: a pilot study. J Ovarian Res 2019; 12:25. [PMID: 30904021 PMCID: PMC6431025 DOI: 10.1186/s13048-019-0500-x] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2018] [Accepted: 03/07/2019] [Indexed: 02/08/2023] Open
Abstract
Background Polycystic ovarian syndrome (PCOS) is a highly variable syndrome and one of the most common female endocrine disorders. Although the association inositols-glucomannan may represent a good therapeutic strategy in the treatment of PCOS women with insulin resistance, the effect of inositols on the metabolomic profile of these women has not been described yet. Results Fifteen PCOS-patients and 15 controls were enrolled. Patients were treated with myo-inositol (1.75 g/day), D-chiro-inositol (0.25 g/day) and glucomannan (4 g/day) for 3 months. Blood concentrations of glucose, insulin, triglycerides and cholesterol, and ovary volumes and antral follicles count, as well as metabolomic profiles, were evaluated for control subjects and for cases before and after treatment. PCOS-patients had higher BMI compared with Controls, BMI decreased significantly after 3 months of treatment although it remained significantly higher compared to controls. 3-methyl-1-hydroxybutyl-thiamine-diphosphate, valine, phenylalanine, ketoisocapric, linoleic, lactic, glyceric, citric and palmitic acid, glucose, glutamine, creatinine, arginine, choline and tocopherol emerged as the most relevant metabolites for distinguishing cases from controls. Conclusion Our pilot study has identified a complex network of serum molecules that appear to be correlated with PCOS, and with a combined treatment with inositols and glucomannan. Trial registration ClinicalTial.gov, NCT03608813. Registered 1st August 2018 - Retrospectively registered, . Electronic supplementary material The online version of this article (10.1186/s13048-019-0500-x) contains supplementary material, which is available to authorized users.
Collapse
Affiliation(s)
- Jacopo Troisi
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana", University of Salerno, Baronissi, SA, Italy. .,Theoreo srl, Via degli Ulivi 3, 84090, Montecorvino Pugliano, SA, Italy. .,European Biomedical Research Institute of Salerno (EBRIS), Via S. de Renzi, 3, 84125, Salerno, SA, Italy.
| | - Claudia Cinque
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana", University of Salerno, Baronissi, SA, Italy
| | - Luigi Giugliano
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana", University of Salerno, Baronissi, SA, Italy
| | - Steven Symes
- Department of Chemistry and Physics, University of Tennessee at Chattanooga, 615 McCallie Ave., Chattanooga, TN, 37403, USA.,Department of Obstetrics and Gynecology, University of Tennessee College of Medicine, Chattanooga, TN, USA
| | - Sean Richards
- Department of Obstetrics and Gynecology, University of Tennessee College of Medicine, Chattanooga, TN, USA.,Department of Biology, Geology and Environmental Sciences, University of Tennessee at Chattanooga, 615 McCallie Ave., Chattanooga, TN, 37403, USA
| | - David Adair
- Department of Obstetrics and Gynecology, University of Tennessee College of Medicine, Chattanooga, TN, USA
| | - Pierpaolo Cavallo
- Department of Physics, University of Salerno, Fisciano, SA, Italy.,Istituto Sistemi Complessi - Consiglio Nazionale delle Ricerche, Rome, Italy
| | - Laura Sarno
- Department of Neurosciences and Reproductive and Dentistry Sciences, University of Naples Federico II, Naples, Italy
| | - Giovanni Scala
- Theoreo srl, Via degli Ulivi 3, 84090, Montecorvino Pugliano, SA, Italy.,Hosmotic srl, Via Raffale Bosco 78, 80069, Vico Equense, NA, Italy
| | - Maria Caiazza
- Azienda Sanitaria Locale, distretto sanitario 66, via Vernieri, 14, 84124, Salerno, SA, Italy
| | - Maurizio Guida
- Department of Medicine, Surgery and Dentistry, "Scuola Medica Salernitana", University of Salerno, Baronissi, SA, Italy.,Theoreo srl, Via degli Ulivi 3, 84090, Montecorvino Pugliano, SA, Italy
| |
Collapse
|