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Kataoka H, Kakumu Y, Agbo DO, Taniguchi T, Yanase E. Computational Study on the Conformational Flexibility-Mediated Intramolecular Oxidative Spirocyclization of Procyanidin B4. J Org Chem 2024; 89:12240-12248. [PMID: 39121369 DOI: 10.1021/acs.joc.4c01183] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/11/2024]
Abstract
Procyanidins, found widely in foods and beverages, are prone to oxidation, yet the chemical structures of their oxidation products and the mechanisms involved remain unclear. Herein, we report that the conformation of procyanidin B4 influences its oxidation products and their stereochemistry. Eight spirocyclized oxidation products were obtained from procyanidin B4 and classified as S- or R-forms based on the configuration of the spiro carbons. The ratios of S- and R-forms derived from the compact and extended rotamers of procyanidin B4, respectively, varied with the solvent. DFT calculations suggested that the four lowest-energy conformers of procyanidin B4 are diverged by interflavan bond rotation and heterocyclic ring inversion. Conformations with an axial-oriented B-ring were estimated as reactive conformations showing proximity between reaction sites on the B- and D-rings. Moreover, the extended rotamer bearing the axially oriented B-ring showed greater stabilization by noncovalent interactions (NCIs), such as OH-π interactions, compared to the counterpart of the compact rotamer. This NCI-based stabilization accounts for a higher production of the R-form despite the predominant presence of the compact rotamer in H2O. These findings highlight the conformational effects that bias the stereoselectivity of oxidative spirocyclization in procyanidin B4, advancing our understanding of procyanidin oxidation mechanisms and product stereochemistry.
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Affiliation(s)
- Haruka Kataoka
- Graduate School of Natural Science and Technology, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
| | - Yuya Kakumu
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
- Institute for Molecular Bio Science, Goethe University Frankfurt, Max-von-Laue Strasse 9, Frankfurt am Main 60438, Germany
| | - Davidson Obinna Agbo
- Graduate School of Life Science, Hokkaido University, North 21 West 11, Sapporo 001-0021, Japan
| | - Tohru Taniguchi
- Frontier Research Center for Advanced Material and Life Science, Faculty of Advanced Life Science, Hokkaido University, North 21 West 11, Sappro 001-0021, Japan
| | - Emiko Yanase
- Graduate School of Natural Science and Technology, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
- The United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
- Faculty of Applied Biological Sciences, Gifu University, 1-1 Yanagido, Gifu 501-1193, Japan
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Beaulieu JC, Boue SM, Goufo P. Health-promoting germinated rice and value-added foods: a comprehensive and systematic review of germination effects on brown rice. Crit Rev Food Sci Nutr 2023; 63:11570-11603. [PMID: 35816149 DOI: 10.1080/10408398.2022.2094887] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
Over the last 30 years, thousands of articles have appeared examining the effects of soaking and germinating brown rice (BR). Variable germination conditions and methods have been employed to measure different health-beneficial parameters in a diverse germplasm of BR. Research results may therefore appear inconsistent with occasional anomalies, and it may be difficult to reach consensus concerning expected trends. Herein, we amassed a comprehensive review on germinated brown rice (GBR), attempting to codify 133 peer-reviewed articles regarding the effects on 164 chemical parameters related to health and nutrition in BR and in value-added food products. The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA-2020) approach was used to direct the flow of the literature search. A pair-wise comparison t-test was performed to deliver an overall approach indicating when a given compound has been found to significantly increase or decrease through germination, which was grouped into GABA and polyamines, γ-Oryzanol and phytosterols, phenolic compounds, vitamins, proteins and amino acids, starchy carbohydrates, free sugars, lipids, minerals and phytic acid. This resource will stimulate interest in germinating rice and optimistically help increase both production and consumption of highly nutritious, health-beneficial rice with pigmented bran.
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Affiliation(s)
- John C Beaulieu
- Food Processing & Sensory Quality Research Unit, United States Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, New Orleans, Louisiana, USA
| | - Stephen M Boue
- Food Processing & Sensory Quality Research Unit, United States Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, New Orleans, Louisiana, USA
| | - Piebiep Goufo
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), University of Trás-os-Montes and Alto Douro (UTAD), Vila Real, Portugal
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Chauhan A, Checker R, Nair S, Sahu PK, Sharma D, Sharma D, Das BK. Indian traditional rice variety "Gathuwan" suppresses T-cell-mediated immune responses via activation of ERK/Nrf2/HO-1 signalling pathway. Food Funct 2023. [PMID: 37194332 DOI: 10.1039/d3fo00125c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
The impact of food on immune functions has been recognized for centuries and is now being increasingly explored for therapeutic applications. Rice, in addition to being the staple food in most developing countries, exhibits diverse complexities of phytochemicals among its wide germplasm repertoire, which supports its development as a functional food. In the present study, we have explored the immunomodulatory properties of Gathuwan rice, a local rice variety grown in Chhattisgarh, India, and traditionally used for the treatment of rheumatism. Methanolic Gathuwan Brown Rice Extract (BRE) inhibits T-cell activation and proliferation and cytokine secretion (IL-2, IL-4, IL-6 and IFN-γ) without inducing cell death. BRE exhibits radical scavenging activity in a cell-free system and decreases intracellular reactive oxygen species (ROS) and glutathione levels in lymphocytes. BRE induces nuclear translocation of the immune-regulatory transcription factor Nrf2 via activation of ERK and p-38 MAP kinase and up-regulates the expression of Nrf2-dependent genes (SOD, CAT, HO-1, GPx and TrxR) in lymphocytes. BRE treatment had no effect on cytokine secretion by lymphocytes from Nrf2 knockout mice, confirming the role of Nrf2 in the immunosuppressive effects of BRE. Feeding of Gathuwan brown rice to mice had no effect on the basal haematological parameters, but lymphocytes isolated from these mice were hypo-responsive to mitogenic stimuli. Treatment of allografts with BRE significantly prevented graft-versus-host disease (GVHD)-associated mortality and morbidity in mice. Metabolic pathway enrichment analysis of ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) data revealed a high enrichment ratio of amino acid and vitamin B metabolism pathways, and among metabolite sets, pyridoxamines, phytosphingosines, hydroxybenzaldehydes, hydroxycinnamic acids and indoles were highly enriched bioactive components. In conclusion, Gathuwan BRE suppresses T-cell-mediated immune responses by altering the cellular redox balance and activating the Nrf2 signalling pathway.
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Affiliation(s)
- Anjali Chauhan
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| | - Rahul Checker
- Radiation Biology & Health Sciences Division, Bio-science Group, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| | - Sunil Nair
- Department of Genetics and Plant Breeding, Indira Gandhi Krishi Vishwavidyalaya, Raipur-492012, India
| | - Parmeshwar K Sahu
- Department of Genetics and Plant Breeding, Indira Gandhi Krishi Vishwavidyalaya, Raipur-492012, India
| | - Deepak Sharma
- Radiation Biology & Health Sciences Division, Bio-science Group, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India.
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
| | - Deepak Sharma
- Department of Genetics and Plant Breeding, Indira Gandhi Krishi Vishwavidyalaya, Raipur-492012, India
| | - Bikram K Das
- Nuclear Agriculture and Biotechnology Division, Bhabha Atomic Research Centre, Trombay, Mumbai-400085, India
- Homi Bhabha National Institute, Anushaktinagar, Mumbai-400094, India
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Chen MH, Pinson SRM, Jackson AK, Edwards JD. Genetic loci regulating the concentrations of anthocyanins and proanthocyanidins in the pericarps of purple and red rice. THE PLANT GENOME 2023:e20338. [PMID: 37177874 DOI: 10.1002/tpg2.20338] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/29/2022] [Revised: 12/16/2022] [Accepted: 03/16/2023] [Indexed: 05/15/2023]
Abstract
The pigmented flavonoids, anthocyanins and proanthocyanidins, have health promoting properties. Previous work determined that the genes Pb and Rc turn on and off the biosynthesis of anthocyanins (purple) and proanthocyanidins (red), respectively. Not yet known is how the concentrations of these pigmented flavonoids are regulated in grain pericarps. Quantitative trait locus (QTL) analysis in a population of rice (Oryza sativa L.) F5 recombinant inbred lines from white pericarp "IR36ae" x red+purple pericarp "242" revealed three QTLs associated with grain concentrations of anthocyanins (TAC) or proanthocyanidins (PA). Both TAC and PA independently mapped to a 1.5 Mb QTL region on chromosome 3 between RM3400 (at 15.8 Mb) and RM15123 (17.3 Mb), named qPR3. Across 2 years, qPR3 explained 36.3% of variance in TAC and 35.8% in PA variance not attributable to Pb or Rc. The qPR3 region encompasses Kala3, a MYB transcription factor previously known to regulate purple grain characteristics. Study of PbPbRcrc progeny showed that TAC of RcRc near isogenic lines (NILs) was 2.1-4.5x that of rcrc. Similarly, study of PbPbRcRc NILs, which had 70% higher PA than pbpbRcRc NILs, revealed a mutual enhancement, not a trade-off between these compounds that share precursors. This suggests that Pb and Rc upregulate genes in a shared pathway as they activate TAC and PA synthesis, respectively. This study provides molecular markers for facilitating marker-assisted selection of qPR3, qPR5, and qPR7 to enhance grain concentrations of pigmented flavonoids and documented that stacking Rc and Pb genes further increases both flavonoid compounds.
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Affiliation(s)
- Ming-Hsuan Chen
- Dale Bumpers National Rice Research Center, United States Department of Agriculture-Agricultural Research Service, Stuttgart, AR, USA
| | - Shannon R M Pinson
- Dale Bumpers National Rice Research Center, United States Department of Agriculture-Agricultural Research Service, Stuttgart, AR, USA
| | - Aaron K Jackson
- Dale Bumpers National Rice Research Center, United States Department of Agriculture-Agricultural Research Service, Stuttgart, AR, USA
| | - Jeremy D Edwards
- Dale Bumpers National Rice Research Center, United States Department of Agriculture-Agricultural Research Service, Stuttgart, AR, USA
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Tian S, Wei Y, Chen Z. Effect of mixture design approach on nutritional characteristics and sensory evaluation of steamed bread added rice flour. Front Nutr 2022; 9:989090. [PMID: 36438756 PMCID: PMC9691985 DOI: 10.3389/fnut.2022.989090] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2022] [Accepted: 10/24/2022] [Indexed: 11/04/2023] Open
Abstract
This study was designed to evaluate the effects of different rice nutrient compounds on steamed bread's nutritional characteristics and sensory evaluation. The mixture design approach was used to research the interactions between different rice flours and wheat flours on the sensory evaluation of steamed bread. The arginine content of different rice flour (long-grained rice, polished round-grained rice, and black rice) was higher at 44.19, 21.74, and 34.78% than that of the common wheat, respectively. When the added amount of mixed rice flours exceeds 15%, the steamed bread gradually reduces its elasticity, and sensory score, and has a smaller specific volume. Rice is a widely consumed grain product, which provides energy and nutrients for more than half of humanity, especially in Asia. Different rice varieties have received increased attention from researchers for their high bioactive substances and other health benefits. The results of the current study provide a theoretical basis for the nutritional steamed bread and noodle industries to use different rice flour as an ingredient for enhancing or to improving the nutritional value of flour products.
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Affiliation(s)
- Shuangqi Tian
- College of Food Science and Technology, Henan University of Technology, Zhengzhou, China
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Ramanathan V, Kambale R, Palaniswamy R, Rahman H, Muthurajan R. Comparative RNA-Seq analysis unravels molecular mechanisms regulating therapeutic properties in the grains of traditional rice Kavuni. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2022; 324:111411. [PMID: 35952828 DOI: 10.1016/j.plantsci.2022.111411] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/15/2022] [Revised: 08/05/2022] [Accepted: 08/06/2022] [Indexed: 06/15/2023]
Abstract
Developing rice varieties with enhanced levels of functional bioactives is an important intervention for achieving food and nutritional security in Asia where rice is the staple food and Type II diabetes incidences are higher. The present study was aimed at dissecting out the molecular events underlying the accumulation of bio active compounds in pigmented traditional rice Kavuni. Comparative transcriptome profiling in the developing grains of Kavuni and a white rice variety ASD 16 generated 37.7 and 29.8 million reads respectively. Statistical analysis identified a total of 9177 exhibiting significant differential expression (DEGs) between the grains of Kavuni and ASD 16. Pathway mapping of DEGs revealed the preferential up-regulation of genes involved in the biosynthesis of amylose and dietary fibres in Kavuni accounting for its low glycemic index (GI). Transcripts involved in the biosynthesis of carotenoids, flavonoids, anthocyanins, phenolic acids and phenylpropanoids were also found to be up-regulated in the grains of Kavuni. This study identified up-regulation of key transcripts involved in the accumulation of phenolic acids having potential for inhibiting major hydrolytic enzymes α-amylase and α-glucosidase and thus accounting for the slow digestibility leading to low GI. Overall, this study has identified molecular targets for the genetic manipulation of anti-diabetic and anti-oxidant traits in rice.
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Affiliation(s)
- Valarmathi Ramanathan
- Department of Plant Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India; ICAR, Sugarcane Breeding Institute, Coimbatore, India
| | - Rohit Kambale
- Department of Plant Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
| | - Rakshana Palaniswamy
- Department of Plant Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
| | - Hifzur Rahman
- Department of Plant Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India
| | - Raveendran Muthurajan
- Department of Plant Biotechnology, Tamil Nadu Agricultural University, Coimbatore, India.
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7
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Andriani R, Subroto T, Ishmayana S, Kurnia D. Enhancement Methods of Antioxidant Capacity in Rice Bran: A Review. Foods 2022; 11:foods11192994. [PMID: 36230070 PMCID: PMC9564381 DOI: 10.3390/foods11192994] [Citation(s) in RCA: 10] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 09/19/2022] [Accepted: 09/20/2022] [Indexed: 11/30/2022] Open
Abstract
Rice (Oryza sativa L.) is a primary food that is widely consumed throughout the world, especially in Asian countries. The two main subspecies of rice are japonica and indica which are different in physical characteristics. In general, both indica and japonica rice consist of three types of grain colors, namely white, red, and black. Furthermore, rice and rice by-products contain secondary metabolites such as phenolic compounds, flavonoids, and tocopherols that have bioactivities such as antioxidants, antimicrobial, cancer chemopreventive, antidiabetic, and hypolipidemic agents. The existence of health benefits in rice bran, especially as antioxidants, gives rice bran the opportunity to be used as a functional food. Most of the bioactive compounds in plants are found in bound form with cell wall components such as cellulose and lignin. The process of releasing bonds between bioactive components and cell wall components in rice bran can increase the antioxidant capacity. Fermentation and treatment with enzymes were able to increase the total phenolic content, total flavonoids, tocotrienols, tocopherols, and γ-oryzanol in rice bran.
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Ethanol Extracts of Rice Bran and Whole Grain Adlay Seeds Mitigate Colonic Inflammation and Damage in Mice with Colitis. Nutrients 2022; 14:nu14183877. [PMID: 36145253 PMCID: PMC9506450 DOI: 10.3390/nu14183877] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2022] [Revised: 09/08/2022] [Accepted: 09/16/2022] [Indexed: 11/16/2022] Open
Abstract
Ulcerative colitis (UC) is a chronic inflammatory bowel disease with frequent relapsing inflammation in the colon. Whole grains have been promoted as healthy and sustainable foods; however, the use of whole gains in UC is inconclusive. The aim of this study was to investigate the effects of ethanol extracts of rice bran (RBE) and whole-grain adlay seeds (ADE) on inflammation, oxidative stress, and colonic damage in UC. Male C57BL/6JNarl mice were intra-rectal injected twice with 2,4-dinitrobenzene sulfonic acid to induce (day 0) and reactivate (day 21) UC. Control mice were fed AIN-93M diet (R group) and injected with a vehicle. UC mice were fed AIN-93M diet (UC group) supplemented with RBE (RBE group) or ADE (ADE group) for 21 days. The results showed that the UC group had an increased disease activity index, plasma interleukin (IL)-6 and glutathione levels, microscopic injury scores, and inflammatory cytokine and chemokine levels in the colon and decreased colonic claudin-4 compared to the R group. RBE and ADE supplementation significantly reduced UC-elevated plasma IL-6 and colonic glutathione and pro-inflammatory cytokines and a chemokine. In addition, RBE and ADE supplementation significantly decreased T-helper-cell-associated cytokines in the plasma and colon. Moreover, RBE supplementation increased colonic IL-10 and tight junction protein claudin-4 levels, and ADE supplementation alleviated diarrhea in UC mice. In conclusion, these results suggest that RBE and ADE may mitigate colonic inflammation, oxidative stress, and damage in UC relapse.
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Beaulieu J, Grimm C, Obando‐Ulloa J, McClung A. Volatiles recovered in novel, diverse and uncharacterized rice varieties. Cereal Chem 2022. [DOI: 10.1002/cche.10579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- J.C. Beaulieu
- United States Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, Food Processing & Sensory Quality Research Unit1100 Allen Toussaint BlvdNew OrleansLAUSA70124
| | - C.C. Grimm
- United States Department of Agriculture, Agricultural Research Service, Southern Regional Research Center, Food Processing & Sensory Quality Research Unit1100 Allen Toussaint BlvdNew OrleansLAUSA70124
| | - J.M. Obando‐Ulloa
- Doctorate Program on Natural Science for the Development and Agronomy Engineering School. Technology Institute of Costa Rica (ITCR)San Carlos Technology Local Campus, Alajuela, CiudadQuesadaCosta Rica
| | - A.M. McClung
- United States Department of Agriculture, Agricultural Research Service, Dale Bumpers National Rice Research Center2890 Hwy 130 E.StuttgartAR72160
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Zhu Q, Tan J, Liu YG. Molecular farming using transgenic rice endosperm. Trends Biotechnol 2022; 40:1248-1260. [PMID: 35562237 DOI: 10.1016/j.tibtech.2022.04.002] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Revised: 04/01/2022] [Accepted: 04/07/2022] [Indexed: 01/05/2023]
Abstract
Plant expression platforms are low-cost, scalable, safe, and environmentally friendly systems for the production of recombinant proteins and bioactive metabolites. Rice (Oryza sativa L.) endosperm is an ideal bioreactor for the production and storage of high-value active substances, including pharmaceutical proteins, oral vaccines, vitamins, and nutraceuticals such as flavonoids and carotenoids. Here, we explore the use of molecular farming from producing medicines to developing functional food crops (biofortification). We review recent progress in producing pharmaceutical proteins and bioactive substances in rice endosperm and compare this platform with other plant expression systems. We describe how rice endosperm could be modified to design metabolic pathways and express and store stable products and discuss the factors restricting the commercialization of transgenic rice products and future prospects.
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Affiliation(s)
- Qinlong Zhu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China.
| | - Jiantao Tan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China
| | - Yao-Guang Liu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, College of Life Sciences, South China Agricultural University, Guangzhou 510642, China; Guangdong Laboratory for Lingnan Modern Agriculture, Guangzhou 510642, China
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Li X, Kahlon T, Wang SC, Friedman M. Low Acrylamide Flatbreads Prepared from Colored Rice Flours and Relationship to Asparagine and Proximate Content of Flours and Flatbreads. Foods 2021; 10:foods10122909. [PMID: 34945459 PMCID: PMC8700719 DOI: 10.3390/foods10122909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Revised: 11/19/2021] [Accepted: 11/22/2021] [Indexed: 11/23/2022] Open
Abstract
Acrylamide is a potentially toxic compound present in many plant-based foods, such as coffee, breads, and potato fries, which is reported to have carcinogenic, neurotoxic, and antifertility properties in vivo, suggesting the need to keep the acrylamide content of widely consumed food as low as possible. As pigmented rice contains bioactive phenolic and flavonoid compounds, the objective of this study was to potentially enhance the beneficial properties of flatbreads by evaluating the acrylamide content and proximate composition of 12 novel flatbreads prepared from the following commercial pigmented rice seeds: Black Japonica, Chinese Black, French Camargue, Himalayan Red, Long Grain Brown, Purple Sticky, Short Grain Brown, Wehani, Wild, Indian Brown Basmati, Organic Brown Jasmine, and Organic Jade Pearl. Although acrylamide levels ranged from 4.9 µg/kg in Long Grain Brown to 50.8 µg/kg in Chinese Black, the absolute values were all low (though statistically significantly differences existed among varieties). Acrylamide content did not correlate with its precursor asparagine. The variations in protein, carbohydrate, fat, ash, dry matter, and water content determined by proximate analysis, and the reported health benefits of colored rice cultivars used to prepare the flatbreads, might also be useful for relating composition to nutritional qualities and health properties, facilitating their use as nutritional and health-promoting functional foods.
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Affiliation(s)
- Xueqi Li
- Olive Center, University of California, Davis, CA 95616, USA;
| | - Talwinder Kahlon
- Healthy Processed Foods Research, Western Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Albany, CA 94710, USA;
| | - Selina C. Wang
- Olive Center, University of California, Davis, CA 95616, USA;
- Department of Food Science and Technology, University of California, Davis, CA 95616, USA
- Correspondence: (S.C.W.); (M.F.); Tel.: +1-530-752-5018 (S.C.W.); +1-510-559-5615 (M.F.)
| | - Mendel Friedman
- Healthy Processed Foods Research, Western Regional Research Center, Agricultural Research Service, United States Department of Agriculture, Albany, CA 94710, USA;
- Correspondence: (S.C.W.); (M.F.); Tel.: +1-530-752-5018 (S.C.W.); +1-510-559-5615 (M.F.)
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12
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Tiozon RJN, Sartagoda KJD, Fernie AR, Sreenivasulu N. The nutritional profile and human health benefit of pigmented rice and the impact of post-harvest processes and product development on the nutritional components: A review. Crit Rev Food Sci Nutr 2021:1-28. [PMID: 34709089 DOI: 10.1080/10408398.2021.1995697] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Pigmented rice has attracted considerable attention due to its nutritional value, which is in large conferred by its abundant content of phenolic compounds, considerable micronutrient concentrations, as well as its higher resistant starch and thereby slower digestibility properties. A wide range of phenolic compounds identified in pigmented rice exhibit biological activities such as antioxidant activity, anti-inflammatory, anticancer, and antidiabetic properties. Post-harvest processes significantly reduce the levels of these phytochemicals, but recent developments in processing methods have allowed greater retention of their contents. Pigmented rice has also been converted to different products for food preservation and to derive functional foods. Profiling a large set of pigmented rice cultivars will thus not only provide new insights into the phytochemical diversity of rice and the genes underlying the vast array of secondary metabolites present in this species but also provide information concerning their nutritional benefits, which will be instrumental in breeding healthier rice. The present review mainly focuses on the nutritional composition of pigmented rice and how it can impact human health alongside the effects of post-harvest processes and product development methods to retain the ambient level of phytochemicals in the final processed form in which it is consumed.
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Affiliation(s)
- Rhowell Jr N Tiozon
- Consumer-driven Grain Quality and Nutrition Center, Strategic Innovation Platform, International Rice Research Institute, Los Baños, Philippines.,Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Kristel June D Sartagoda
- Consumer-driven Grain Quality and Nutrition Center, Strategic Innovation Platform, International Rice Research Institute, Los Baños, Philippines
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
| | - Nese Sreenivasulu
- Consumer-driven Grain Quality and Nutrition Center, Strategic Innovation Platform, International Rice Research Institute, Los Baños, Philippines
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13
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Settu R, Selvaraj D, Padikasan IA. GCMS profiling and in silico screening of alpha-amylase inhibitors in traditional pigmented rice varieties (Oryza sativa Linn) of Tamil Nadu. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Proanthocyanidins and Where to Find Them: A Meta-Analytic Approach to Investigate Their Chemistry, Biosynthesis, Distribution, and Effect on Human Health. Antioxidants (Basel) 2021; 10:antiox10081229. [PMID: 34439477 PMCID: PMC8389005 DOI: 10.3390/antiox10081229] [Citation(s) in RCA: 36] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Revised: 07/26/2021] [Accepted: 07/27/2021] [Indexed: 12/22/2022] Open
Abstract
Proanthocyanidins (PACs) are a class of polyphenolic compounds that are attracting considerable interest in the nutraceutical field due to their potential health benefits. However, knowledge about the chemistry, biosynthesis, and distribution of PACs is limited. This review summarizes the main chemical characteristics and biosynthetic pathways and the main analytical methods aimed at their identification and quantification in raw plant matrices. Furthermore, meta-analytic approaches were used to identify the main plant sources in which PACs were contained and to investigate their potential effect on human health. In particular, a cluster analysis identified PACs in 35 different plant families and 60 different plant parts normally consumed in the human diet. On the other hand, a literature search, coupled with forest plot analyses, highlighted how PACs can be actively involved in both local and systemic effects. Finally, the potential mechanisms of action through which PACs may impact human health were investigated, focusing on their systemic hypoglycemic and lipid-lowering effects and their local anti-inflammatory actions on the intestinal epithelium. Overall, this review may be considered a complete report in which chemical, biosynthetic, ecological, and pharmacological aspects of PACs are discussed.
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Bioactive compounds of pigmented wheat (Triticum aestivum): Potential benefits in human health. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.02.003] [Citation(s) in RCA: 19] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
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16
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Brotman Y, Llorente-Wiegand C, Oyong G, Badoni S, Misra G, Anacleto R, Parween S, Pasion E, Tiozon RN, Anonuevo JJ, deGuzman MK, Alseekh S, Mbanjo EGN, Boyd LA, Fernie AR, Sreenivasulu N. The genetics underlying metabolic signatures in a brown rice diversity panel and their vital role in human nutrition. THE PLANT JOURNAL : FOR CELL AND MOLECULAR BIOLOGY 2021; 106:507-525. [PMID: 33529453 DOI: 10.1111/tpj.15182] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/08/2020] [Revised: 01/19/2021] [Accepted: 01/26/2021] [Indexed: 06/12/2023]
Abstract
Brown rice (Oryza sativa) possesses various nutritionally dense bioactive phytochemicals exhibiting a wide range of antioxidant, anti-cancer, and anti-diabetic properties known to promote various human health benefits. However, despite the wide claims made about the importance of brown rice for human nutrition the underlying metabolic diversity has not been systematically explored. Non-targeted metabolite profiling of developing and mature seeds of a diverse genetic panel of 320 rice cultivars allowed quantification of 117 metabolites. The metabolite genome-wide association study (mGWAS) detected genetic variants influencing diverse metabolic targets in developing and mature seeds. We further interlinked genetic variants on chromosome 7 (6.06-6.43 Mb region) with complex epistatic genetic interactions impacting multi-dimensional nutritional targets, including complex carbohydrate starch quality, the glycemic index, antioxidant catechin, and rice grain color. Through this nutrigenomics approach rare gene bank accessions possessing genetic variants in bHLH and IPT5 genes were identified through haplotype enrichment. These variants were associated with a low glycemic index, higher catechin levels, elevated total flavonoid contents, and heightened antioxidant activity in the whole grain with elevated anti-cancer properties being confirmed in cancer cell lines. This multi-disciplinary nutrigenomics approach thus allowed us to discover the genetic basis of human health-conferring diversity in the metabolome of brown rice.
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Affiliation(s)
- Yariv Brotman
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
- Department of Life Sciences, Ben-Gurion University of the Negev, Beersheba, Israel
| | | | - Glenn Oyong
- Molecular Science Unit Laboratory - Center for Natural Sciences and Environmental Research, De La Salle University, 2401 Taft Avenue, Manila, 1004, Philippines
| | - Saurabh Badoni
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
| | - Gopal Misra
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
| | - Roslen Anacleto
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
| | - Sabiha Parween
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
| | - Erstelle Pasion
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
| | - Rhowell N Tiozon
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
| | - Joanne J Anonuevo
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
| | - Maria K deGuzman
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
| | - Saleh Alseekh
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, Plovdiv, 4000, Bulgaria
| | - Edwige G N Mbanjo
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
| | - Lesley A Boyd
- NIAB, 93 Lawrence Weaver Road, Cambridge, CB3 0LE, UK
| | - Alisdair R Fernie
- Max-Planck-Institute of Molecular Plant Physiology, Potsdam-Golm, Germany
- Center of Plant Systems Biology and Biotechnology, Plovdiv, 4000, Bulgaria
| | - Nese Sreenivasulu
- International Rice Research Institute, DAPO Box 7777, Metro Manila, Philippines
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17
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Martín-García B, Gómez-Caravaca AM, Marconi E, Verardo V. Distribution of free and bound phenolic compounds, and alkylresorcinols in wheat aleurone enriched fractions. Food Res Int 2020; 140:109816. [PMID: 33648163 DOI: 10.1016/j.foodres.2020.109816] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2020] [Revised: 10/02/2020] [Accepted: 10/12/2020] [Indexed: 10/23/2022]
Abstract
Several companies have focused their attention on the development of technologies able to enrich/isolate the wheat aleuronic layer because it is a source of bioactive compounds. In this work two different wheat bran fractions enriched in aleurone (AF1, 55-70% aleurone and AF2, 75-90% aleurone) were obtained by a dry fractionation based on air classification. Free and bound phenolic compounds, and alkylresorcinols were determined in the two fractions by HPLC-DAD-ESI-TOF-MS and GC-MS, respectively. To our knowledge, feruloyl di-hexoside was described for the first time in wheat aleurone and flavonoids were quantified for the first time in this fraction. The results have shown that the most concentrated free phenolic compounds were flavonoids, and AF1 was the fraction that presented the highest flavonoid content; whereas trans ferulic acid was the most abundant bound phenolic acid, which highest content was obtained in AF2. Besides, total content of ferulic acid monomers in AF2 was 33.63% higher than in AF1, whereas total content of ferulic acid dimers/trimers in AF1 was 33.9% higher than in AF2. The highest content of alkylresorcinols was obtained in AF1 and it was 10.30% higher than the obtained in AF2. Therefore, it can be stated that this green technology could be used to produce enriched aleurone fractions as source of phenolic and alkylresorcinol compounds. These fractions could be of great interest for the formulation of enriched foods.
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Affiliation(s)
- Beatriz Martín-García
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Avd. Fuentenueva s/n, 18071 Granada, Spain
| | - Ana María Gómez-Caravaca
- Department of Analytical Chemistry, Faculty of Sciences, University of Granada, Avd. Fuentenueva s/n, 18071 Granada, Spain.
| | - Emanuele Marconi
- Dipartimento Agricoltura, Ambiente e Alimenti, Università del Molise, via De Sanctis s/n, I-86100 Campobasso, Italy
| | - Vito Verardo
- Department of Nutrition and Food Science, University of Granada, Campus of Cartuja, 18071 Granada, Spain; Institute of Nutrition and Food Technology 'José Mataix', Biomedical Research Center, University of Granada, Avda del Conocimiento sn., 18100 Armilla, Granada, Spain
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18
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Murtey MD, Seeni A. The phytochemical analysis and pharmacological potentials of husk and straw as paddy waste products. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:4347-4352. [PMID: 32248531 DOI: 10.1002/jsfa.10406] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2019] [Revised: 12/14/2019] [Accepted: 04/05/2020] [Indexed: 06/11/2023]
Abstract
Rice serves as a staple food for one-half of the global population. However, rice production, particularly the rice milling process, results in a substantial amount of paddy waste products (e.g. bran, husk and straw) annually. Because the potentials of bran have been extensively explored in prior studies, the present review focuses exclusively on the phytochemical analysis and pharmacological potentials of husk and straw. This comprehensive review establishes a solid foundation for promoting husk and straw as medicinal substances given their promising pharmacological potentials as bioactive compound sources with therapeutic functions. © 2020 Society of Chemical Industry.
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Affiliation(s)
- Mogana Das Murtey
- Basic Sciences and Oral Biology Unit, School of Dental Sciences. Health Campus, Universiti Sains Malaysia, Kubang Kerian, Malaysia
| | - Azman Seeni
- Cluster of Integrative Medicine, Advanced Medical and Dental Institute, Universiti Sains Malaysia, Bertam, Penang, Malaysia
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19
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Gong ES, Liu C, Li B, Zhou W, Chen H, Li T, Wu J, Zeng Z, Wang Y, Si X, Lang Y, Zhang Y, Zhang W, Zhang G, Luo S, Liu RH. Phytochemical profiles of rice and their cellular antioxidant activity against ABAP induced oxidative stress in human hepatocellular carcinoma HepG2 cells. Food Chem 2020; 318:126484. [DOI: 10.1016/j.foodchem.2020.126484] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 01/27/2020] [Accepted: 02/23/2020] [Indexed: 02/06/2023]
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20
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Verma DK, Srivastav PP. Bioactive compounds of rice (Oryza sativa L.): Review on paradigm and its potential benefit in human health. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.01.007] [Citation(s) in RCA: 54] [Impact Index Per Article: 13.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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21
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Wang Y, Zhao L, Zhang R, Yang X, Sun Y, Shi L, Xue P. Optimization of ultrasound-assisted extraction by response surface methodology, antioxidant capacity, and tyrosinase inhibitory activity of anthocyanins from red rice bran. Food Sci Nutr 2020; 8:921-932. [PMID: 32148801 PMCID: PMC7020273 DOI: 10.1002/fsn3.1371] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2019] [Revised: 11/20/2019] [Accepted: 11/28/2019] [Indexed: 12/12/2022] Open
Abstract
The anthocyanins contents from red rice bran were characterized by HPLC/MS. Response surface methodology was used to optimize the ultrasound-assisted extraction of red rice bran anthocyanin. The antioxidant activities were evaluated in terms of IC50. The tyrosinase inhibitory activities of the anthocyanin samples from red rice bran and the standard substances were determined by a spectrophotometric method. According to mass spectrometry information, the main component of anthocyanins is paeoniflorin (m/z = 480). The optimized anthocyanin level was 5.80 mg/g under the following conditions: solid-liquid ratio of 1:17.46; ethanol concentration of 78.37%; ultrasonication time of 55.23 min; and pH of 2.31. The IC50 value of the DPPH radical scavenging and the superoxide anion scavenging activities of the sample were 53.51 and 2,375 μg/ml; those of the standard were 14.60 and 64.74 μg/ml; and those of vitamin C were 24.45 and 136.25 μg/ml, respectively. The IC50 values of the tyrosinase inhibition activities of the sample and Vc were 4.26 and 2.18 μg/ml, respectively. There is a significant difference (p < .05) between the activities of the three, which may be caused by the purity of the extract. Red rice bran anthocyanins have valuable research and development prospects as skin whiteners and healthcare products.
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Affiliation(s)
- Yujie Wang
- School of Public Health and ManagementWeifang Medical UniversityWeifangChina
| | - Lei Zhao
- School of Public Health and ManagementWeifang Medical UniversityWeifangChina
| | - Ruoyu Zhang
- School of Public Health and ManagementWeifang Medical UniversityWeifangChina
| | - Xiushi Yang
- Institute of Crop SciencesChinese Academy of Agricultural SciencesBeijingChina
| | - Yanghua Sun
- School of Public Health and ManagementWeifang Medical UniversityWeifangChina
| | - Longlong Shi
- School of Public Health and ManagementWeifang Medical UniversityWeifangChina
| | - Peng Xue
- School of Public Health and ManagementWeifang Medical UniversityWeifangChina
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22
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Chen MH, Bergman CJ, McClung AM. Hydrolytic rancidity and its association with phenolics in rice bran. Food Chem 2019; 285:485-491. [PMID: 30797374 DOI: 10.1016/j.foodchem.2019.01.139] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2018] [Revised: 01/22/2019] [Accepted: 01/23/2019] [Indexed: 12/25/2022]
Abstract
Whole grain rice, which has the bran layer intact, contains more nutrients and health beneficial compounds than its milled rice equivalent. Its consumption is associated with a reduction in the risk of developing several chronic diseases. However, the bran contains non-starch lipids deposited along with the lipid degrading enzymes, lipase and lipoxygenase, resulting in a relatively short shelf life for whole grain rice. We studied the genotypic diversity of lipase induced hydrolytic rancidity (HR) level in the bran of 134 diverse genotypes and found more than a 15-fold variation. Among the genotypes, those with red or brown bran had lower HR than the purple, light brown and white brans. Total phenolic content and anthocyanins were negatively correlated with the HR in purple brans suggesting their inhibitory effect on lipase during bran storage. In conclusion, low HR genotypes could be used as breeding materials to improve the storage stability of whole grain rice.
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Affiliation(s)
- Ming-Hsuan Chen
- Dale Bumpers National Rice Research Center, Agricultural Research Service, United States Department of Agriculture, Stuttgart, AR 72160, USA.
| | - Christine J Bergman
- Food & Beverage and Event Management Dept., University of Nevada, Las Vegas, Las Vegas, NV 89154, USA.
| | - Anna M McClung
- Dale Bumpers National Rice Research Center, Agricultural Research Service, United States Department of Agriculture, Stuttgart, AR 72160, USA.
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23
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Hibi Y, Yanase E. Oxidation of Procyanidins with Various Degrees of Condensation: Influence on the Color-Deepening Phenomenon. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:4940-4946. [PMID: 30994340 DOI: 10.1021/acs.jafc.9b02085] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/09/2023]
Abstract
Color deepening in red rice is a known phenomenon that occurs during postharvest storage. As procyanidins potentially causes this color deepening, we previously subjected synthetic procyanidin B3, a model procyanidin, to chemical oxidation and determined the structures of the products. To further elucidate the effects of various degrees of polymerization on color deepening, in this study we oxidized synthetic procyanidin C2. The intensity of the UV-vis absorption between 300 and 500 nm in the spectrum of the reaction mixture increased with increasing oxidation time. This absorption following the oxidation of procyanidin C2 was more intense than that of procyanidin B3. HPLC-ESI-MS of the oxidized reaction mixture revealed several new peaks that suggested the formation of products with new intramolecular rather than intermolecular bonds. The major product was structurally identified by comparison with the UPLC-ESI-MS/MS data for a synthetic procyanidin C2 oxide, independently prepared by condensing procyanidin B3 oxide and taxifolin.
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Affiliation(s)
- Yoshihide Hibi
- Faculty of Applied Biological Sciences , Gifu University , 1-1 Yanagido , Gifu 501-1193 , Japan
| | - Emiko Yanase
- Faculty of Applied Biological Sciences , Gifu University , 1-1 Yanagido , Gifu 501-1193 , Japan
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24
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Kim SP, Lee SJ, Nam SH, Friedman M. The composition of a bioprocessed shiitake (Lentinus edodes) mushroom mycelia and rice bran formulation and its antimicrobial effects against Salmonella enterica subsp. enterica serovar Typhimurium strain SL1344 in macrophage cells and in mice. BMC COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 18:322. [PMID: 30518352 PMCID: PMC6282263 DOI: 10.1186/s12906-018-2365-8] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Accepted: 10/29/2018] [Indexed: 02/06/2023]
Abstract
Background Human infection by pathogenic Salmonella bacteria can be acquired by consuming of undercooked meat products and eggs. Antimicrobial resistance against antibiotics used in medicine is also a major concern. To help overcome these harmful effects on microbial food safety and human health, we are developing novel antimicrobial food-compatible formulations, one of which is described in the present study. Methods The composition of a bioprocessed (fermented) rice bran extract (BPRBE) from Lentinus edodes liquid mycelia culture was evaluated using gas chromatography and mass spectrometry, and the mechanism of its antibacterial effect against Salmonella Typhimurium, strain SL1344 was investigated in macrophage cells and in mice. Results BPRBE stimulated uptake of the bacteria into RAW 264.7 murine macrophage cells. Activation of the cells was confirmed by increases in NO production resulting from the elevation of inducible nitric oxide synthase (iNOS) mRNA, and in protein expression. Salmonella infection down-regulated the expression of the following protein biomarkers of autophagy (a catabolic process for stress adaptation of cellular components): Beclin-1, Atg5, Atg12, Atg16, LC3-I and LC3-II. BPRBE promoted the upregulation of protein expressions that induced bacterial destruction in autolysosomes of RAW 264.7 cells. ELISA analysis of interferon IFN-β showed that inflammatory cytokine secretion and bactericidal activity had similar profiles, suggesting that BPRBE enhances cell-autonomous and systemic bactericidal activities via autophagic capture of Salmonella. The treatment also elicited increased excretion of bacteria in feces and their decreased translocation to internal organs (cecum, mesenteric lymph node, spleen, and liver). Conclusions The antibiotic mechanism of BPRBE involves the phagocytosis of extracellular bacteria, autophagic capture of intracellular bacteria, and prevention of translocation of bacteria across the intestinal epithelial cells. The new bioprocessing combination of mushroom mycelia and rice brans forms a potentially novel food formulation with in vivo antimicrobial properties that could serve as a functional antimicrobial food and medical antibiotic.
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25
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Yoshimura Y, Nakashima K, Kato M, Inoue K, Okazaki F, Soyama H, Kawasaki S. Electricity Generation from Rice Bran by a Microbial Fuel Cell and the Influence of Hydrodynamic Cavitation Pretreatment. ACS OMEGA 2018; 3:15267-15271. [PMID: 30556001 PMCID: PMC6289545 DOI: 10.1021/acsomega.8b02077] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/17/2018] [Accepted: 10/26/2018] [Indexed: 05/15/2023]
Abstract
Single-chamber microbial fuel cells (MFCs) were constructed using rice bran (carbon source) and pond bottom mud (microbial source). The total electric charge obtained in the MFC combining rice bran with pond bottom mud was four times higher than that in MFC using only rice bran. Phylogenetic analyses revealed dominant growth of fermentative bacteria such as Bacteroides and Clostridium species, and exoelectrogenic Geobacter species in the anode biofilms, suggesting that mutualism of these bacteria is a key factor for effective electricity generation in the MFC. Furthermore, rice bran, consisting of persistent polysaccharide, was pretreated by the hydrodynamic cavitation system to improve the digestibility and enhance the efficiency in MFC, resulting in 26% increase in the total production of electricity.
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Affiliation(s)
- Yuta Yoshimura
- Division
of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo 060-8628, Japan
| | - Kazunori Nakashima
- Division
of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo 060-8628, Japan
- E-mail: . Phone/Fax: +81-11-706-6322
| | - Masaji Kato
- Division
of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo 060-8628, Japan
| | - Kengo Inoue
- Department
of Biochemistry and Applied Biosciences, Faculty of Agriculture, University of Miyazaki, 1-1 Gakuen Kibanadai-nishi, Miyazaki 889-2192, Japan
| | - Fumiyoshi Okazaki
- Department
of Life Sciences, Graduate School of Bioresources, Mie University, 1577 Kurimamachiya, Tsu, Mie 514-8507, Japan
| | - Hitoshi Soyama
- Department
of Finemechanics, Tohoku University, Aoba-yama 6-6-01, Aoba-ku, Sendai 980-8579, Japan
| | - Satoru Kawasaki
- Division
of Sustainable Resources Engineering, Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-Ku, Sapporo 060-8628, Japan
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26
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Vargas CG, da Silva Junior JD, Rabelo TK, Moreira JCF, Gelain DP, Rodrigues E, Augusti PR, Rios ADO, Flôres SH. Bioactive compounds and protective effect of red and black rice brans extracts in human neuron-like cells (SH-SY5Y). Food Res Int 2018; 113:57-64. [DOI: 10.1016/j.foodres.2018.06.069] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Revised: 06/27/2018] [Accepted: 06/28/2018] [Indexed: 11/25/2022]
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27
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Rao S, Santhakumar AB, Chinkwo KA, Vanniasinkam T, Luo J, Blanchard CL. Chemopreventive Potential of Cereal Polyphenols. Nutr Cancer 2018; 70:913-927. [PMID: 30273076 DOI: 10.1080/01635581.2018.1491609] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
It has been identified that diet is one of the major contributing factors associated with the development of cancer and other chronic pathologies. In the recent years, supplementing regular diet with food and/or its components that contain chemopreventive properties has been considered an effective approach in reducing the incidence of cancer and other lifestyle associated diseases. This systematic review provides an exhaustive summary of the chemopreventive properties exhibited by everyday dietary ingredients such as rice, barley, oats, and sorghum. The studies both in vitro and in vivo reviewed have highlighted the potential role of their polyphenolic content as chemopreventive agents. Polyphenolic compounds including anthocyanins, tricin, protocatechualdehyde, avenanthramide, and 3-deoxyanthocyanins found in rice, barley, oats, and sorghum, respectively, were identified as compounds with potent bioactivity. Studies demonstrated that cereal polyphenols are likely to have chemopreventive activities, particularly those found in pigmented varieties. In conclusion, findings suggest that the consumption of pigmented cereals could potentially have an important role as a natural complementary cancer preventive therapeutic. However, further studies to develop a complete understanding of the mechanisms by which phenolic compounds inhibit cancerous cell proliferation are warranted.
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Affiliation(s)
- Shiwangni Rao
- a School of Biomedical Sciences , Charles Sturt University , Wagga Wagga , New South Wales , Australia.,b Australian Research Council (ARC) Industrial Transformation Training Centre (ITTC) for Functional Grains, Graham Centre for Agricultural Innovation, Charles Sturt University , Wagga Wagga , New South Wales , Australia
| | - Abishek B Santhakumar
- a School of Biomedical Sciences , Charles Sturt University , Wagga Wagga , New South Wales , Australia.,b Australian Research Council (ARC) Industrial Transformation Training Centre (ITTC) for Functional Grains, Graham Centre for Agricultural Innovation, Charles Sturt University , Wagga Wagga , New South Wales , Australia
| | - Kenneth A Chinkwo
- a School of Biomedical Sciences , Charles Sturt University , Wagga Wagga , New South Wales , Australia.,b Australian Research Council (ARC) Industrial Transformation Training Centre (ITTC) for Functional Grains, Graham Centre for Agricultural Innovation, Charles Sturt University , Wagga Wagga , New South Wales , Australia
| | - Thiru Vanniasinkam
- a School of Biomedical Sciences , Charles Sturt University , Wagga Wagga , New South Wales , Australia
| | - Jixun Luo
- c New South Wales Department of Primary Industries , Yanco Agricultural Institute , Yanco , New South Wales , Australia
| | - Christopher L Blanchard
- a School of Biomedical Sciences , Charles Sturt University , Wagga Wagga , New South Wales , Australia.,b Australian Research Council (ARC) Industrial Transformation Training Centre (ITTC) for Functional Grains, Graham Centre for Agricultural Innovation, Charles Sturt University , Wagga Wagga , New South Wales , Australia
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28
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Affiliation(s)
- Fan Zhu
- School of Chemical Sciences, University of Auckland, Auckland, New Zealand
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29
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Hayashi S, Nakano K, Yanase E. Investigation of color-deepening phenomenon in catechin-(4 → 8)-dimer as a proanthocyanidin model and structural determination of its derivatives by oxidation. Food Chem 2018; 239:1126-1133. [DOI: 10.1016/j.foodchem.2017.07.062] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 07/12/2017] [Accepted: 07/12/2017] [Indexed: 11/16/2022]
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30
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Chutipaijit S, Sutjaritvorakul T. Comparative study of total phenolic compounds, flavonoids and antioxidant capacities in pigmented and non-pigmented rice of indica rice varieties. JOURNAL OF FOOD MEASUREMENT AND CHARACTERIZATION 2017. [DOI: 10.1007/s11694-017-9692-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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31
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Pham T, Teoh KT, Savary BJ, Chen MH, McClung A, Lee SO. In Vitro Fermentation Patterns of Rice Bran Components by Human Gut Microbiota. Nutrients 2017; 9:nu9111237. [PMID: 29137150 PMCID: PMC5707709 DOI: 10.3390/nu9111237] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2017] [Revised: 11/06/2017] [Accepted: 11/09/2017] [Indexed: 02/07/2023] Open
Abstract
Whole grain rice is a rich source of fiber, nutrients, and phytochemicals that may promote gastrointestinal health, but such beneficial components are typically removed with the bran during polishing. Soluble feruloylated arabinoxylan oligosaccharides (FAXO) and polyphenols (RBPP) isolated from rice bran are hypothesized to have positive impacts on human gut microbiota through a prebiotic function. Using an in vitro human fecal fermentation bioassay, FAXO and RBPP treatments were assessed for short-chain fatty acids (SCFA) production patterns and by evaluating their impacts on the phylogentic composition of human gut microbiota by 16S rRNA gene sequencing. Fresh fecal samples collected from healthy adults (n = 10, 5 males, 5 females) were diluted with anaerobic medium. Each sample received five treatments: CTRL (no substrates), FOS (fructooligosaccharides), FAXO, RBPP, and MIX (FAXO with RBPP). Samples were incubated at 37 °C and an aliquot was withdrawn at 0, 4, 8, 12, and 24 h Results showed that SCFA production was significantly increased with FAXO and was comparable to fermentation with FOS, a well-established prebiotic. RBPP did not increase SCFA productions, and no significant differences in total SCFA production were observed between FAXO and MIX, indicating that RBPP does not modify FAXO fermentation. Changes in microbiota population were found in FAXO treatment, especially in Bacteroides, Prevotella, and Dorea populations, indicating that FAXO might modulate microbiota profiles. RBPP and MIX increased Faecalibacterium, specifically F. prausnitzii. Combined FAXO and RBPP fermentation increased abundance of butyrogenic bacteria, Coprococcus and Roseburia, suggesting some interactive activity. Results from this study support the potential for FAXO and RBPP from rice bran to promote colon health through a prebiotic function.
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Affiliation(s)
- Tung Pham
- Department of Food Science, Division of Agriculture, University of Arkansas, Fayetteville, AR 72701, USA.
| | - Keat Thomas Teoh
- Arkansas Biosciences Institute, Arkansas State University, Jonesboro, AR 72401, USA.
| | - Brett J Savary
- Arkansas Biosciences Institute, Arkansas State University, Jonesboro, AR 72401, USA.
- College of Agriculture and Technology, Arkansas State University, Jonesboro, AR 72401, USA.
| | - Ming-Hsuan Chen
- USDA Agricultural Research Service, Dale Bumpers National Rice Research Center, Stuttgart, AR 72160, USA.
| | - Anna McClung
- USDA Agricultural Research Service, Dale Bumpers National Rice Research Center, Stuttgart, AR 72160, USA.
| | - Sun-Ok Lee
- Department of Food Science, Division of Agriculture, University of Arkansas, Fayetteville, AR 72701, USA.
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Bhat FM, Riar CS. Extraction, identification and assessment of antioxidative compounds of bran extracts of traditional rice cultivars: An analytical approach. Food Chem 2017; 237:264-274. [PMID: 28763995 DOI: 10.1016/j.foodchem.2017.05.113] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2017] [Revised: 04/22/2017] [Accepted: 05/22/2017] [Indexed: 01/07/2023]
Abstract
The antioxidative compounds were extracted by ultrasonic treatment of bran extracts of seven pigmented (completely) and non pigmented (sparsely) colored rice cultivars followed by assessment of their in vitro antioxidative capacity by LC-MS and oxidation/reduction assay based methods. A total of 40-compounds, 7-phenolic, 9-flavonoids, 9-hydroxycinammic acid derivatives, 3-hydroxybenzoic acid derivatives and other glucosides specifically, pro-anthocyanidin trimer and procyanidin-B1 (dimer) were indentified in completely colored rice cultivars. Higher DPPH radical scavenging activity of pigmented cultivars was due to higher percentage of phenolics like thymol, quinicquinic-caffeicacid ester and polar dicaffeoylquinic acid; whereas higher lipid peroxidation inhibition was attributed to the presence of polar substances such as p-hydroxybenzoicacid, procyanidin B1 and quercetin-3-O-rutinoside. The phosphomolybdenum reduction capacity was attributed to luteolin-7-O-glucoside, apigenin-7-O-glucoside, caffeicacid, myrecitin and phloreticacid. Whereas, grater reducing power of pigmented bran was attributed to presence of multiple-OH groups containing phenols, flavonoid and hydracinammicacid depicting potential health and nutritional effects of these rice cultivars.
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Affiliation(s)
- Farhan M Bhat
- Department of Food Engineering & Technology, Sant Longowal Institute of Engineering & Technology, Longowal, Punjab 148106, India
| | - Charanjit S Riar
- Department of Food Engineering & Technology, Sant Longowal Institute of Engineering & Technology, Longowal, Punjab 148106, India.
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Min BR, Marsh LE, Brathwaite K, Daramola AO. Effects of Tissue Culture and Mycorrhiza Applications in Organic Farming on Concentrations of Phytochemicals and Antioxidant Capacities in Ginger (Zingiber officinale Roscoe) Rhizomes and Leaves. J Food Sci 2017; 82:873-881. [PMID: 28231393 DOI: 10.1111/1750-3841.13661] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 01/11/2017] [Accepted: 01/24/2017] [Indexed: 12/21/2022]
Abstract
Tissue culture and mycorrhiza applications can provide disease-free seedlings and enhanced nutrient absorption, respectively, for organic farming. Ginger (Zingiber officinale Roscoe) is rich in phytochemicals and has various health-protective potentials. This study was aimed at determining effects of tissue culture and mycorrhiza applications alone or in combinations in organic farming on phytochemical contents (total phenolics and flavonoids [TP and TF, respectively], gingerol and shogaol homologues, phenolic acids, and carotenoids) and antioxidant capacities (DPPH [2,2-diphenyl-1-picrylhydrazyl] radical scavenging, oxygen radical absorbance (ORAC), and iron-chelating capacities [ICC]) in solvent-extractable (Free) and cell-wall-matrix-bound (Bound) fractions of ginger rhizome and Free fraction of the leaves in comparison with non-organics. Concentrations of the phytochemicals and antioxidant capacities, except for carotenoids and ICC, were significantly higher in organic ginger rhizomes and leaves than in non-organics regardless of the fractions and treatments (P < 0.05). Mycorrhiza application in organic farming significantly increased levels of TP, TF, gingerols, and ORAC in the Free fraction of the rhizome (P < 0.05). Furthermore, the combined application of tissue culture and mycorrhiza significantly increased concentrations of TF and gingerols and ORAC in the Free fraction of the rhizome (P < 0.05), suggesting their synergistic effects. Considerable amounts of phenolics were found in the Bound fractions of the rhizomes. Six-gingerol, ferulic acid, and lutein were predominant ones among gingerols, phenolic acids, and carotenoids, respectively, in ginger rhizomes. The results suggest that organic farming with mycorrhiza and tissue culture applications can increase concentrations of phytochemicals and antioxidant capacities in ginger rhizomes and leaves and therefore improve their health-protective potentials.
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Affiliation(s)
- Byungrok R Min
- Dept. of Agriculture, Food, and Resource Sciences, Univ. of Maryland Eastern Shore, Princess Anne, MD, 21853, U.S.A
| | - Lurline E Marsh
- Dept. of Agriculture, Food, and Resource Sciences, Univ. of Maryland Eastern Shore, Princess Anne, MD, 21853, U.S.A
| | - Keegan Brathwaite
- Dept. of Agriculture, Food, and Resource Sciences, Univ. of Maryland Eastern Shore, Princess Anne, MD, 21853, U.S.A
| | - Adebola O Daramola
- Dept. of Agriculture, Food, and Resource Sciences, Univ. of Maryland Eastern Shore, Princess Anne, MD, 21853, U.S.A
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Han D, Lee HT, Lee JB, Kim Y, Lee SJ, Yoon JW. A Bioprocessed Polysaccharide from Lentinus edodes Mycelia Cultures with Turmeric Protects Chicks from a Lethal Challenge of Salmonella Gallinarum. J Food Prot 2017; 80:245-250. [PMID: 28221973 DOI: 10.4315/0362-028x.jfp-16-306] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Our previous studies demonstrated that a bioprocessed polysaccharide (BPP) isolated from Lentinus edodes mushroom mycelia cultures supplemented with black rice bran can protect mice against Salmonella lipopolysaccharide-induced endotoxemia and reduce the mortality from Salmonella Typhimurium infection through upregulated T-helper 1 immunity. Here, we report that a BPP from L. edodes mushroom mycelia liquid cultures supplemented with turmeric (referred to as BPP-turmeric) alters chicken macrophage responses against avian-adapted Salmonella Gallinarum and protects chicks against a lethal challenge from Salmonella Gallinarum. In vitro analyses revealed that the water extract of BPP-turmeric (i) changed the protein expression or secretion profile of Salmonella Gallinarum, although it was not bactericidal, (ii) reduced the phagocytic activity of the chicken-derived macrophage cell line HD-11 when infected with Salmonella Gallinarum, and (iii) significantly activated the transcription expression of interleukin (IL)-1β, IL-10, tumor necrosis factor α, and inducible nitric oxide synthase in response to various Salmonella infections, whereas it repressed that of IL-4, IL-6, interferon-β, and interferon-γ. We also found that BPP-turmeric (0.1 g/kg of feed) as a feed additive provided significant protection to 1-day-old chicks infected with a lethal dose of Salmonella Gallinarum. Collectively, these results imply that BPP-turmeric contains biologically active component(s) that protect chicks against Salmonella Gallinarum infection, possibly by regulating macrophage immune responses. Further studies are needed to evaluate the potential efficacy of BPP-turmeric as a livestock feed additive for the preharvest control of fowl typhoid or foodborne salmonellosis.
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Affiliation(s)
- Dalmuri Han
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Hyung Tae Lee
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - June Bong Lee
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
| | - Yongbaek Kim
- Laboratory of Clinical Pathology, Research Institute for Veterinary Science, and Brain Korea 21 Plus Program for Creative Veterinary Science Research, College of Veterinary Medicine, Seoul National University, Seoul 08826, Republic of Korea
| | - Sang Jong Lee
- STR Biotech, Ltd., 56, Soyanggang-ro, Chuncheon, Gangwon 24232, Republic of Korea
| | - Jang Won Yoon
- College of Veterinary Medicine and Institute of Veterinary Science, Kangwon National University, Chuncheon, Gangwon 24341, Republic of Korea
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35
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Scientific Evidence of Rice By-Products for Cancer Prevention: Chemopreventive Properties of Waste Products from Rice Milling on Carcinogenesis In Vitro and In Vivo. BIOMED RESEARCH INTERNATIONAL 2017; 2017:9017902. [PMID: 28210630 PMCID: PMC5292171 DOI: 10.1155/2017/9017902] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/14/2016] [Revised: 12/01/2016] [Accepted: 12/04/2016] [Indexed: 12/20/2022]
Abstract
Cancer is a significant global health concern affecting men and women worldwide. Although current chemopreventive drugs could inhibit the growth of cancer cells, they exert many adverse side effects. Dietary factor plays a crucial role in the management of cancers and has drawn the attention of researchers to be used as an option to combat this disease. Both in vitro and in vivo studies showed that rice and its by-products display encouraging results in the prevention of this disease. The mechanism of anticancer effect is suggested partly through potentiation of bioactive compounds like vitamin E, phytic acid, γ-aminobutyric acid (GABA), γ-oryzanol, and phenolics. Nevertheless, the bioactivity of rice and its by-products is still incompletely understood. In this review, we present the findings from a preclinical study both in in vitro and in animal experiments on the promising role of rice by-products with focus on cancer prevention.
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36
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Concentrations of oligomers and polymers of proanthocyanidins in red and purple rice bran and their relationships to total phenolics, flavonoids, antioxidant capacity and whole grain color. Food Chem 2016; 208:279-87. [DOI: 10.1016/j.foodchem.2016.04.004] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2015] [Revised: 03/28/2016] [Accepted: 04/03/2016] [Indexed: 02/04/2023]
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Boue SM, Daigle KW, Chen MH, Cao H, Heiman ML. Antidiabetic Potential of Purple and Red Rice (Oryza sativa L.) Bran Extracts. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:5345-5353. [PMID: 27285791 DOI: 10.1021/acs.jafc.6b01909] [Citation(s) in RCA: 66] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Pigmented rice contains anthocyanins and proanthocyanidins that are concentrated in the bran layer. In this study, we determined the phenolic, flavonoid, anthocyanin, and proanthocyanidin content of five rice bran (1 brown, 2 red, and 2 purple) extracts. Each bran extract was evaluated for inhibitory effects on α-amylase and α-glucosidase activity, two key glucosidases required for starch digestion in humans. All purple and red bran extracts inhibited α-glucosidase activity, however only the red rice bran extracts inhibited α-amylase activity. Additionally, each bran extract was examined for their ability to stimulate glucose uptake in 3T3-L1 adipocytes, a key function in glucose homeostasis. Basal glucose uptake was increased between 2.3- and 2.7-fold by exposure to the red bran extracts, and between 1.9- and 3.1-fold by exposure to the purple bran extracts. In red rice bran, the highest enzyme inhibition and glucose uptake was observed with a proanthocyanidin-enriched fraction. Both IITA red bran and IAC purple bran increased expression of GLUT1 and GLUT4 mRNA, and genes encoding insulin-signaling pathway proteins.
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Affiliation(s)
- Stephen M Boue
- Southern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture , New Orleans, Louisiana 70124, United States
| | - Kim W Daigle
- Southern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture , New Orleans, Louisiana 70124, United States
| | - Ming-Hsuan Chen
- Dale Bumpers National Rice Research Center, Agricultural Research Service, U.S. Department of Agriculture , 2890 Highway 130 East, Stuttgart, Arkansas 72160, United States
| | - Heping Cao
- Southern Regional Research Center, Agricultural Research Service, U.S. Department of Agriculture , New Orleans, Louisiana 70124, United States
| | - Mark L Heiman
- Microbiome Therapeutics , 11001 120th Avenue, Broomfield, Colorado 80021, United States
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38
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Xu F, Bao J, Kim TS, Park YJ. Genome-wide Association Mapping of Polyphenol Contents and Antioxidant Capacity in Whole-Grain Rice. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:4695-703. [PMID: 27163766 DOI: 10.1021/acs.jafc.6b01289] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Whole grains contain various bioactive phytochemicals including phenolic acids, and consumption of whole grains may provide desirable health benefits and reduce the risks of chronic diseases due to their antioxidant activities. In this study, we qualified and quantified 9 bound phenolic compounds in 32 red and 88 white pericarp accessions of rice. A genome-wide association study (GWAS) was conducted for free (FP) and bound (BP) phenolic compounds and their antioxidant capacities with high-quality single-nucleotide polymorphisms (SNPs) in two colored grain panels and the whole panel. Rc was detected for all FP and antioxidant capacities in the whole panel. Three loci (chr.1:30970095, chr.6:24392269, and chr.9:6670223) for more than five phenolic-related traits, two loci (chr.4:34120529 and chr.11:28947480) for more than two FP-related traits, and one locus (chr.11:23220681) for ferulic acid detected in two panels were potentially new genes that are valuable for further gene cloning. Overall, this study increases our understanding on the genetics of phenolic acid biosynthesis in the phenylpropanoid pathway.
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Affiliation(s)
- Feifei Xu
- Department of Plant Resources, College of Industrial Science, Kongju National University , Yesan, Republic of Korea
- Institute of Nuclear Agricultural Sciences, College of Agriculture and Biotechnology, Zhejiang University , Huajiachi Campus, Hangzhou 310029, China
| | - Jinsong Bao
- Department of Plant Resources, College of Industrial Science, Kongju National University , Yesan, Republic of Korea
- Institute of Nuclear Agricultural Sciences, College of Agriculture and Biotechnology, Zhejiang University , Huajiachi Campus, Hangzhou 310029, China
| | - Tae-Sung Kim
- Department of Plant Resources, College of Industrial Science, Kongju National University , Yesan, Republic of Korea
| | - Yong-Jin Park
- Department of Plant Resources, College of Industrial Science, Kongju National University , Yesan, Republic of Korea
- Legume Bio-Resource Center of Green Manure (LBRCGM), Kongju National University , Yesan, Republic of Korea
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Chen MH, McClung AM, Bergman CJ. Bran data of total flavonoid and total phenolic contents, oxygen radical absorbance capacity, and profiles of proanthocyanidins and whole grain physical traits of 32 red and purple rice varieties. Data Brief 2016; 8:6-13. [PMID: 27257615 PMCID: PMC4878786 DOI: 10.1016/j.dib.2016.05.001] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 04/26/2016] [Accepted: 05/02/2016] [Indexed: 11/24/2022] Open
Abstract
Phytochemicals in red and purple bran rice have potential health benefit to humans. We determined the phytochemicals in brans of 32 red and purple global rice varieties. The description of the origin and physical traits of the whole grain (color, length, width, thickness and 100-kernel weight) of this germplasm collection are provided along with data of total flavonoid and total phenolic contents, oxygen radical absorbance capacity and total proanthocyanidin contents. The contents and proportions of individual oligomers, from degree of polymerization of monomers to 14-mers, and polymers in bran of these 32 rice varieties are presented (DOI: http://dx.doi.org/10.1016/j.foodchem.2016.04.004) [1].
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Affiliation(s)
- Ming-Hsuan Chen
- Agricultural Research Service, United States Department of Agriculture, Dale Bumpers National Rice Research Center, Stuttgart, AR 72160, USA
- Corresponding author.
| | - Anna M. McClung
- Agricultural Research Service, United States Department of Agriculture, Dale Bumpers National Rice Research Center, Stuttgart, AR 72160, USA
| | - Christine J. Bergman
- Department of Food and Beverage, University of Nevada-Las Vegas, Las Vegas, NV 89154, USA
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40
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A study on the color deepening in red rice during storage. Food Chem 2016; 199:457-62. [DOI: 10.1016/j.foodchem.2015.12.023] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Revised: 12/07/2015] [Accepted: 12/07/2015] [Indexed: 01/31/2023]
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41
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Modified Rice Straw as Adsorbent Material to Remove Aflatoxin B1 from Aqueous Media and as a Fiber Source in Fino Bread. J Toxicol 2016; 2016:6869582. [PMID: 26989411 PMCID: PMC4771912 DOI: 10.1155/2016/6869582] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2015] [Revised: 12/25/2015] [Accepted: 01/14/2016] [Indexed: 11/17/2022] Open
Abstract
The aims of the current work are in large part the benefit of rice straw to be used as adsorbent material and natural source of fiber in Fino bread. The rice straw was subjected to high temperature for modification process and the chemical composition was carried out and the native rice straw contained about 41.15% cellulose, 20.46% hemicellulose, and 3.91% lignin while modified rice straw has 42.10, 8.65, and 5.81%, respectively. The alkali number was tested and showed an increase in the alkali consumption due to the modification process. The different concentrations of modified rice straw, aflatoxin B1, and pH were tested for removal of aflatoxin B1 from aqueous media and the maximum best removal was at 5% modified rice straw, 5 ng/mL aflatoxin B1, and pH 7. The modified rice straw was added to Fino bread at a level of 5, 10, and 15% and the chemical, rheological, baking quality, staling, and sensory properties were studied. Modified rice straw induced an increase of the shelf life and the produced Fino bread has a better consistency.
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42
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Suwannakul N, Punvittayagul C, Jarukamjorn K, Wongpoomchai R. Purple rice bran extract attenuates the aflatoxin B1-induced initiation stage of hepatocarcinogenesis by alteration of xenobiotic metabolizing enzymes. Asian Pac J Cancer Prev 2016; 16:3371-6. [PMID: 25921147 DOI: 10.7314/apjcp.2015.16.8.3371] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Pigmented rice bran has been suggested to be a valuable source of beneficial phytochemicals. We investigated genotoxic and anti-genotoxic effects of purple rice bran extract (PRBE) in rats using a liver micronucleus assay. Purple rice bran was extracted with methanol, obtaining large amounts of phenolic compounds, including anthocyanins and small amounts of gamma-oryzanol. The experimental protocols were divided into two sets. Male rats were divided into three groups. Group 1 was a negative control, while Groups 2 and 3 were fed with 100 and 500 mg/kg bw of PRBE, respectively, for 28 days. PRBE had no effect on micronucleus formation or xenobiotic metabolizing enzymes in rat liver. Experiments concerning the effect of PRBE on AFB1 showed that PRBE significantly lessened the amount of micronucleated hepatocytes in AFB1 treated rats. Furthermore, it modulated metabolic activation of AFB1 metabolism in the liver by suppressing activity and protein expression of CYP1A2, CYP3A and CYP 450 reductase, and enhancing phase II enzymes including GST and UGT. Overall, purple rice bran extract was not genotoxic in rats. It exhibited anti-genotoxicity by modulation some xenobiotic enzymes active in AFB1 metabolism.
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Affiliation(s)
- Nattawan Suwannakul
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand E-mail :
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43
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Dietary rice bran supplementation prevents Salmonella colonization differentially across varieties and by priming intestinal immunity. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.08.027] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022] Open
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Ghasemzadeh A, Jaafar HZE, Juraimi AS, Tayebi-Meigooni A. Comparative Evaluation of Different Extraction Techniques and Solvents for the Assay of Phytochemicals and Antioxidant Activity of Hashemi Rice Bran. Molecules 2015; 20:10822-38. [PMID: 26111171 PMCID: PMC6272729 DOI: 10.3390/molecules200610822] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2015] [Revised: 06/02/2015] [Accepted: 06/04/2015] [Indexed: 01/17/2023] Open
Abstract
Secondary metabolite contents (total phenolic, flavonoid, tocopherol, and tocotrienol) and antioxidant activities of Hashemi rice bran extracts obtained by ultrasound-assisted and traditional solvent (ethanol and 50:50 (v/v) ethanol-water) extraction techniques were compared. Phenolic and, flavonoid compounds were identified using ultra-high performance liquid chromatography and method validation was performed. Significant differences (p < 0.05) were observed among the different extraction techniques upon comparison of phytochemical contents and antioxidant activities. The extracts obtained using the ethanol-water (50:50 v/v) ultrasonic technique showed the highest amounts of total phenolics (288.40 mg/100 g dry material (DM)), total flavonoids (156.20 mg/100 g DM), and total tocotrienols (56.23 mg/100 g DM), and the highest antioxidant activity (84.21% 1,1-diphenyl-2-picrylhydrazyl (DPPH), 65.27% β-carotene-linoleic bleaching and 82.20% nitric oxide scavenging activity). Secondary metabolite contents and antioxidant activities of the rice bran extracts varied depending of the extraction method used, and according to their effectiveness, these were organized in a decreasing order as follows: ethanol-water (50:50 v/v) ultrasonic, ethanol-water (50:50 v/v) maceration, ethanol ultrasonic and ethanol maceration methods. Ferulic, gallic and chlorogenic acids were the most abundant phenolic compounds in rice bran extracts. The phytochemical constituents of Hashemi rice bran and its antioxidant properties provides insights into its potential application to promote health.
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Affiliation(s)
- Ali Ghasemzadeh
- Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Hawa Z E Jaafar
- Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Abdul Shukor Juraimi
- Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
| | - Amin Tayebi-Meigooni
- Department of Crop Science, Faculty of Agriculture, Universiti Putra Malaysia, 43400 Serdang, Selangor, Malaysia.
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45
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Friedman M. Chemistry and anticarcinogenic mechanisms of glycoalkaloids produced by eggplants, potatoes, and tomatoes. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2015; 63:3323-37. [PMID: 25821990 DOI: 10.1021/acs.jafc.5b00818] [Citation(s) in RCA: 106] [Impact Index Per Article: 11.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Inhibition of cancer can occur via apoptosis, a genetically directed process of cell self-destruction that involves numerous biomarkers and signaling pathways. Glycoalkaloids are nitrogen-containing secondary plant metabolites found in numerous Solanaceous plants including eggplants, potatoes, and tomatoes. Exposure of cancer cells to glycoalkaloids produced by eggplants (α-solamargine and α-solasonine), potatoes (α-chaconine and α-solanine), and tomatoes (α-tomatine) or their hydrolysis products (mono-, di-, and trisaccharide derivatives and the aglycones solasodine, solanidine, and tomatidine) inhibits the growth of the cells in culture (in vitro) as well as tumor growth in vivo. This overview comprehensively surveys and consolidates worldwide efforts to define the following aspects of these natural compounds: (a) their prevalence in the three foods; (b) their chemistry and structure-activity relationships; (c) the reported factors (biomarkers, signaling pathways) associated with apoptosis of bone, breast, cervical, colon, gastric, glioblastoma, leukemia, liver, lung, lymphoma, melanoma, pancreas, prostate, and squamous cell carcinoma cell lines in vitro and the in vivo inhibition of tumor formation and growth in fish and mice and in human skin cancers; and (d) future research needs. The described results may make it possible to better relate the structures of the active compounds to their health-promoting function, individually, in combination, and in food, and allow the consumer to select glycoalkaloid-containing food with the optimal content of nontoxic beneficial compounds. The described findings are expected to be a valuable record and resource for further investigation of the health benefits of food-related natural compounds.
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Affiliation(s)
- Mendel Friedman
- Western Regional Research Center, Agricultural Research Service, United States Department Agriculture, Albany, California 94710, United States
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46
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Banjerdpongchai R, Wudtiwai B, Sringarm K. Cytotoxic and apoptotic-inducing effects of purple rice extracts and chemotherapeutic drugs on human cancer cell lines. Asian Pac J Cancer Prev 2015; 14:6541-8. [PMID: 24377565 DOI: 10.7314/apjcp.2013.14.11.6541] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Pigmented rice is mainly black, red, and dark purple, and contains a variety of flavones, tannin, polyphenols, sterols, tocopherols, γ-oryzanols, amino acids, and essential oils. The present study evaluated the cytotoxic effects of purple rice extracts (PREs) combined with chemotherapeutic drugs on human cancer cells and mechanisms of cell death. Methanolic (MeOH) and dichloromethane (DCM) extracts of three cultivars of purple rice in Thailand: Doisaket (DSK), Nan and Payao (PYO), were tested and compared with white rice (KK6). Cytotoxicity was determined by 3-(4, 5-dimethyl)-2, 5-diphenyltetrazolium bromide (MTT) assay in human hepatocellular carcinoma HepG2, prostate cancer LNCaP and murine normal fibroblast NIH3T3 cells. MeOH-PYO-PRE was the most cytotoxic and inhibited HepG2 cell growth more than that of LNCaP cells but was not toxic to NIH3T3 cells. When PREs were combined with paclitaxel or vinblastine, they showed additive cytotoxic effects on HepG2 and LNCaP cells, except for MeOH-PYO-PRE which showed synergistic effects on HepG2 cells when combined with vinblastine. MeOH-PYO-PRE plus vinblastine induced HepG2 cell apoptosis with loss of mitochondrial transmembrane potential (MTP) but no ROS production. MeOH-PYO-PRE-treated HepG2 cells underwent apoptosis via caspase-9 and-3 activation. The level of γ-oryzanol was highest in DCM-PYO-PRE (44.17 mg/g) whereas anthocyanin content was high in MeOH-PYO-PRE (5.80 mg/g). In conclusion, methanolic Payao purple rice extract was mostly toxic to human HepG2 cells and synergistically enhanced the cytotoxicity of vinblastine. Human HepG2 cell apoptosis induced by MeOH-PYO-PRE and vinblastine was mediated through a mitochondrial pathway.
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Affiliation(s)
- Ratana Banjerdpongchai
- Department of Biochemistry, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand E-mail :
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47
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Surarit W, Jansom C, Lerdvuthisopon N, Kongkham S, Hansakul P. Evaluation of antioxidant activities and phenolic subtype contents of ethanolic bran extracts of Thai pigmented rice varieties through chemical and cellular assays. Int J Food Sci Technol 2014. [DOI: 10.1111/ijfs.12703] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Worawat Surarit
- Biochemistry and Molecular Biology Program; Faculty of Medicine; Thammasat University; Khlong Luang 12120 Thailand
| | - Chalerm Jansom
- Research Office; Faculty of Medicine; Thammasat University; Khlong Luang 12120 Thailand
| | - Nusiri Lerdvuthisopon
- Biochemistry and Molecular Biology Program; Faculty of Medicine; Thammasat University; Khlong Luang 12120 Thailand
- Department of Preclinical Science; Faculty of Medicine; Thammasat University; Khlong Luang 12120 Thailand
| | - Supranee Kongkham
- Biochemistry and Molecular Biology Program; Faculty of Medicine; Thammasat University; Khlong Luang 12120 Thailand
- Department of Preclinical Science; Faculty of Medicine; Thammasat University; Khlong Luang 12120 Thailand
| | - Pintusorn Hansakul
- Biochemistry and Molecular Biology Program; Faculty of Medicine; Thammasat University; Khlong Luang 12120 Thailand
- Department of Preclinical Science; Faculty of Medicine; Thammasat University; Khlong Luang 12120 Thailand
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Effects of hydrothermal processes on antioxidants in brown, purple and red bran whole grain rice (Oryza sativa L.). Food Chem 2014; 159:106-15. [DOI: 10.1016/j.foodchem.2014.02.164] [Citation(s) in RCA: 61] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2013] [Revised: 02/04/2014] [Accepted: 02/27/2014] [Indexed: 02/01/2023]
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Park Y, Park EM, Kim EH, Chung IM. Hypocholesterolemic metabolism of dietary red pericarp glutinous rice rich in phenolic compounds in mice fed a high cholesterol diet. Nutr Res Pract 2014; 8:632-7. [PMID: 25489402 PMCID: PMC4252522 DOI: 10.4162/nrp.2014.8.6.632] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2014] [Revised: 05/29/2014] [Accepted: 06/12/2014] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND/OBJECTIVES The purpose of the current study was to investigate the effect of red pericarp glutinous rice rich in polyphenols (Jakwangchalbyeo, red rice) on serum and hepatic levels of cholesterol and hepatic protein expression linked to synthesis and degradation of cholesterol in a hypercholesterolemic mice diet as compared with brown rice. MATERIALS/METHODS C57BL/6 male mice were randomly divided into four groups (n = 5 each), which were fed different diets for a period of 12 weeks: American Institute of Nutrition (AIN)-93G diet, AIN-93G diet with 2% cholesterol, brown rice with 2% cholesterol, or red rice with 2% cholesterol. RESULT Consumption of red rice resulted in a significant decrease in serum level of low-density lipoprotein cholesterol and hepatic levels of triglyceride and total-cholesterol. Expression of acyl-coenzyme A cholesterol acyltransferase-2 (ACAT-2), sterol regulatory element binding protein-2 (SREBP-2), and 3-hydroxyl-3-methylglutaryl coenzyme A (HMG-CoA) reductase was decreased, while expression of phosphorylated adenosine monophosphate activated protein kinase (p-AMPK)/AMPK ratio, cholesterol 7-α-hydroxylase (CYP7a1), and sterol 12-α-hydroxylase (CYP8b1) was increased in mice fed red rice. Brown rice had similar effects on cholesterol metabolism, but the effect of red rice was significantly greater than that of brown rice. CONCLUSIONS The current study suggested that red rice had a hypocholesterolemic effect by lowering hepatic cholesterol synthesis through ACAT-2, HMG-CoA reductase, and SREBP-2, and by enhancing hepatic cholesterol degradation through CYP7a1 and CYP8b1 in mice fed a hypercholesterolemic diet.
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Affiliation(s)
- Yongsoon Park
- Department of Food and Nutrition, Hanyang University, Wangsimni-ro 222, Seongdong-gu, Seoul 133-791, Korea
| | - Eun-Mi Park
- Department of Food and Nutrition, Hanyang University, Wangsimni-ro 222, Seongdong-gu, Seoul 133-791, Korea
| | - Eun-Hye Kim
- Department of Applied Bioscience, College of Life and Environmental Science, Konkuk University, Seoul 143-701, Korea
| | - Ill-Min Chung
- Department of Applied Bioscience, College of Life and Environmental Science, Konkuk University, Seoul 143-701, Korea
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A local Thai cultivar glutinous black rice bran: A source of functional compounds in immunomodulation, cell viability and collagen synthesis, and matrix metalloproteinase-2 and -9 inhibition. J Funct Foods 2014. [DOI: 10.1016/j.jff.2013.12.020] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
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