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Xu S, Zhou H, Xu B, Liu W, Hu W, Xu Q, Hong J, Liu Y, Li X. Deciphering layer formation in Red Heart Qu: A comprehensive study of metabolite profile and microbial community influenced by raw materials and environmental factors. Food Chem 2024; 451:139377. [PMID: 38703722 DOI: 10.1016/j.foodchem.2024.139377] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2023] [Revised: 03/18/2024] [Accepted: 04/13/2024] [Indexed: 05/06/2024]
Abstract
Environmental-origin microbiota significantly influences Red Heart Qu (RH_Qu) stratification, but their microbial migration and metabolic mechanisms remain unclear. Using high-throughput sequencing and metabolomics, we divided the stratification of RH_Qu into three temperature-based stages. Phase I features rising temperatures, causing microbial proliferation and a two-layer division. Phase II, characterized by peak temperatures, sees the establishment of thermotolerant species like Bacillus, Thermoactinomyces, Rhodococcus, and Thermoascus, forming four distinct layers and markedly altering metabolite profiles. The Huo Quan (HQ), developing from the Pi Zhang (PZ), is driven by the tyrosine-melanin pathway and increased MRPs (Maillard reaction products). The Hong Xin evolves from the Rang, associated with the phenylalanine-coumarin pathway and QCs (Quinone Compounds) production. Phase III involves the stabilization of the microbial and metabolic profile as temperatures decline. These findings enhance our understanding of RH_Qu stratification and offer guidance for quality control in its fermentation process.
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Affiliation(s)
- Shanshan Xu
- School of Food and Biological Engineering, Hefei University of Technology, No.193 Tunxi Road, Hefei City 230009, Anhui Province, People's Republic of China
| | - Hao Zhou
- School of Food and Biological Engineering, Hefei University of Technology, No.193 Tunxi Road, Hefei City 230009, Anhui Province, People's Republic of China
| | - Boyang Xu
- School of Food and Biological Engineering, Hefei University of Technology, No.193 Tunxi Road, Hefei City 230009, Anhui Province, People's Republic of China
| | - Wuyang Liu
- School of Food and Biological Engineering, Hefei University of Technology, No.193 Tunxi Road, Hefei City 230009, Anhui Province, People's Republic of China
| | - Weiqi Hu
- School of Food and Biological Engineering, Hefei University of Technology, No.193 Tunxi Road, Hefei City 230009, Anhui Province, People's Republic of China
| | - Qinxiang Xu
- Anhui Kouzi Brewery Co., Ltd., No.9 South Xiangshan Road, Huaibei City 235199, Anhui Province, People's Republic of China
| | - Jiong Hong
- School of Life Sciences, University of Science and Technology of China, No.443 Huangshan Road, Hefei 230026, Anhui Province, People's Republic of China
| | - Yongxin Liu
- Shenzhen Branch, Guangdong Laboratory of Lingnan Modern Agriculture, Genome Analysis Laboratory of the Ministry of Agriculture and Rural Affairs, Agricultural Genomics Institute at Shenzhen, Chinese Academy of Agricultural Sciences, No.7 Pengfei Road, Shenzhen city 518120, Guangdong province, People's Republic of China.
| | - Xingjiang Li
- School of Food and Biological Engineering, Hefei University of Technology, No.193 Tunxi Road, Hefei City 230009, Anhui Province, People's Republic of China.
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Feng X, Guo M, Li J, Shen Z, Mo F, Tian Y, Wang B, Wang C. The structural characterization of a novel Chinese yam polysaccharide and its hypolipidemic activity in HFD-induced obese C57BL/6J mice. Int J Biol Macromol 2024; 265:130521. [PMID: 38553396 DOI: 10.1016/j.ijbiomac.2024.130521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Revised: 02/18/2024] [Accepted: 02/27/2024] [Indexed: 04/18/2024]
Abstract
Obesity was considered as a rapidly growing chronic disease that influences human health worldwide. In this study, we investigated the primary structure characteristics of Chinese yam polysaccharide (CYP) and its role in regulating lipid metabolism in a high-fat diet (HFD)-fed obese mice. The molecular weight of CYP was determined to be 3.16 × 103 kDa. Periodic acid oxidation & smith degradation and nuclear magnetic resonance results suggested that CYP consists of 1 → 2, 1 → 2, 6, 1 → 4, 1 → 4, 6, 1→, or 1 → 6 glycoside bonds. The in vivo experiment results suggested that the biochemical indices, tissue sections, and protein regulation associated with lipid metabolism were changed after administering CYP in obese mice. In addition, the abundances of short-chain fatty acid (SCFA)-producing bacteria Lachnospiraceae, Lachnospiraceae_NK4A136_group, and Ruminococcaceae_UCG-014 were increased, and the abundances of bacteria Desulfovibrionaceae and Ruminococcus and metabolites of arginine, propionylcarnitine, and alloisoleucine were decreased after CYP intervention in obese mice. Spearman's correlation analysis of intestinal flora, metabolites, and lipid metabolism parameters showed that CYP may affect lipid metabolism in obese mice by regulating the intestinal environment. Therefore, CYP may be used as a promising nutritional intervention agent for lipid metabolism.
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Affiliation(s)
- Xiaojuan Feng
- "State Key Laboratory of Food Nutrition and Safety", Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, No.29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Mingzhu Guo
- College of Food Science and Technology, Hebei Agricultural University, Baoding 071001, China
| | - Jingyao Li
- "State Key Laboratory of Food Nutrition and Safety", Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, No.29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Zhanyu Shen
- "State Key Laboratory of Food Nutrition and Safety", Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, No.29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Fanghua Mo
- "State Key Laboratory of Food Nutrition and Safety", Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, No.29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Yutong Tian
- "State Key Laboratory of Food Nutrition and Safety", Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, No.29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Binghui Wang
- "State Key Laboratory of Food Nutrition and Safety", Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, No.29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China
| | - Chunling Wang
- "State Key Laboratory of Food Nutrition and Safety", Key Laboratory of Food Nutrition and Safety, Ministry of Education, College of Food Engineering and Biotechnology, Tianjin University of Science and Technology, No.29, 13th Avenue, Tianjin Economy Technological Development Area, Tianjin 300457, China.
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Jiang W, Sun J, Gao H, Tang Y, Wang C, Jiang Y, Zhang W, Xin F, Jiang M. Carotenoids production and genome analysis of a novel carotenoid producing Rhodococcus aetherivorans N1. Enzyme Microb Technol 2023; 164:110190. [PMID: 36603321 DOI: 10.1016/j.enzmictec.2022.110190] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 12/26/2022] [Accepted: 12/27/2022] [Indexed: 12/31/2022]
Abstract
Carotenoids are a series of natural pigments with unique structure and physiological functions. In this study, a novel Rhodococcus aetherivorans strain N1 was discovered, which can produce 6.4 mg/g carotenoids including β-carotene, zeaxanthin and isorenieratene from glucose. Moreover, strain N1 can directly produce 3.0 mg/g carotenoids from the undetoxified straw hydrolysate, representing the highest carotenoids production from the undetoxified lignocellulosic hydrolysate. The crude carotenoid extracts of strain N1 showed efficient free radical scavenging activity and stability. Strain N1 has complete methylerythritol 4-phosphate (MEP) pathway and related genes for carotenoid synthesis, especially the rare aromatic carotenoid of isorenieratene. Genomic comparison between strain N1 and other carotenoid producing Rhodococcus sp. strains showed the conservatism and universality of carotenoids synthesis gene. These results proved that R. aetherivorans strain N1 can serve as a promising producer for the industrialization of carotenoid production.
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Affiliation(s)
- Wankui Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Jingxiang Sun
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Haiyan Gao
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Yunhan Tang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Chao Wang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China
| | - Yujia Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China
| | - Wenming Zhang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China.
| | - Fengxue Xin
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China.
| | - Min Jiang
- State Key Laboratory of Materials-Oriented Chemical Engineering, College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, PR China; Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing Tech University, Nanjing 211816, PR China
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Paudel L, Ghimire N, Han SR, Park H, Jung SH, Oh TJ. Complete genome of Nakamurella sp. PAMC28650: genomic insights into its environmental adaptation and biotechnological potential. Funct Integr Genomics 2022; 23:18. [PMID: 36564681 PMCID: PMC9789016 DOI: 10.1007/s10142-022-00937-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 11/21/2022] [Accepted: 11/21/2022] [Indexed: 12/24/2022]
Abstract
The mechanisms underlying the survival of bacteria in low temperature and high radiation are not yet fully understood. Nakamurella sp. PAMC28650 was isolated from a glacier of Rwenzori Mountain, Uganda, which species belonged to Nakamurella genus based on 16S rRNA phylogeny, ANI (average nucleotide identity), and BLAST Ring Image Generator (BRIG) analysis among Frankineae suborder. We conducted the whole genome sequencing and comparative genomics of Nakamurella sp. PAMC28650, to understand the genomic features pertaining to survival in cold environment, along with high UV (ultraviolet) radiation. This study highlights the role of polysaccharide in cold adaptation, mining of the UV protection-related secondary metabolites and other related to cold adaptation mechanism through different bioinformatics tools, and providing a brief overview of the genes present in DNA repair systems. Nakamurella sp. PAMC28650 contained glycogen and cellulose metabolism pathways, mycosporine-like amino acids and isorenieratene-synthesizing gene cluster, and a number of DNA repair systems. Also, the genome analysis showed osmoregulation-related genes and cold shock proteins. We infer these genomic features are linked to bacterial survival in cold and UV radiation.
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Affiliation(s)
- Lakshan Paudel
- Department of Life Science and Biochemical Engineering, Graduate School, Sun-Moon University, Asan, 31460, Korea
| | - Nisha Ghimire
- Department of Life Science and Biochemical Engineering, Graduate School, Sun-Moon University, Asan, 31460, Korea
| | - So-Ra Han
- Department of Life Science and Biochemical Engineering, Graduate School, Sun-Moon University, Asan, 31460, Korea
| | - Hyun Park
- Division of Biotechnology, College of Life Science and Biotechnology, Korea University, Seoul, 02841, Korea
| | - Sang-Hee Jung
- Department of Dental Hygiene, Gangneung Yeongdong University, Gangneung, 25521, Korea
| | - Tae-Jin Oh
- Department of Life Science and Biochemical Engineering, Graduate School, Sun-Moon University, Asan, 31460, Korea. .,Genome-Based Bio-IT Convergence Institute, Asan, 31460, Korea. .,Department of Pharmaceutical Engineering and Biotechnology, Sun-Moon University, Asan, 31460, Korea.
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Liu J, Xiao L, Xie Y, Guan F, Cai J. The stability of carotenoids from a marine photosynthetic bacterium
Ectothiorhodospira shaposhnikovii
P2. J FOOD PROCESS PRES 2022. [DOI: 10.1111/jfpp.16724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- Jie Liu
- College of Chemical Engineering and Materials Science Tianjin University of Science & Technology Key Laboratory of Brine Chemical Engineering and Resource Eco‐utilization Tianjin Tianjin China
| | - Likun Xiao
- College of Chemical Engineering and Materials Science Tianjin University of Science & Technology Key Laboratory of Brine Chemical Engineering and Resource Eco‐utilization Tianjin Tianjin China
| | - Yujie Xie
- College of Chemical Engineering and Materials Science Tianjin University of Science & Technology Key Laboratory of Brine Chemical Engineering and Resource Eco‐utilization Tianjin Tianjin China
| | - Fachun Guan
- Jilin Academy of Agricultural Sciences Changchun China
| | - Jinling Cai
- College of Chemical Engineering and Materials Science Tianjin University of Science & Technology Key Laboratory of Brine Chemical Engineering and Resource Eco‐utilization Tianjin Tianjin China
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López GD, Álvarez-Rivera G, Carazzone C, Ibáñez E, Leidy C, Cifuentes A. Bacterial Carotenoids: Extraction, Characterization, and Applications. Crit Rev Anal Chem 2021; 53:1239-1262. [PMID: 34915787 DOI: 10.1080/10408347.2021.2016366] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/24/2023]
Abstract
Natural carotenoids are secondary metabolites that exhibit antioxidant, anti-inflammatory, and anti-cancer properties. These types of compounds are highly demanded by pharmaceutical, cosmetic, nutraceutical, and food industries, leading to the search for new natural sources of carotenoids. In recent years, the production of carotenoids from bacteria has become of great interest for industrial applications. In addition to carotenoids with C40-skeletons, some bacteria have the ability to synthesize characteristic carotenoids with C30-skeletons. In this regard, a great variety of methodologies for the extraction and identification of bacterial carotenoids has been reported and this is the first review that condenses most of this information. To understand the diversity of carotenoids from bacteria, we present their biosynthetic origin in order to focus on the methodologies employed in their extraction and characterization. Special emphasis has been made on high-performance liquid chromatography-mass spectrometry (HPLC-MS) for the analysis and identification of bacterial carotenoids. We end up this review showing their potential commercial use. This review is proposed as a guide for the identification of these metabolites, which are frequently reported in new bacteria strains.
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Affiliation(s)
- Gerson-Dirceu López
- Chemistry Department, Laboratory of Advanced Analytical Techniques in Natural Products (LATNAP), Universidad de los Andes, Bogotá, Colombia
- Physics Department, Laboratory of Biophysics, Universidad de los Andes, Bogotá, Colombia
- Laboratory of Foodomics, Institute of Food Science Research (CIAL), CSIC, Madrid, Spain
| | | | - Chiara Carazzone
- Chemistry Department, Laboratory of Advanced Analytical Techniques in Natural Products (LATNAP), Universidad de los Andes, Bogotá, Colombia
| | - Elena Ibáñez
- Laboratory of Foodomics, Institute of Food Science Research (CIAL), CSIC, Madrid, Spain
| | - Chad Leidy
- Physics Department, Laboratory of Biophysics, Universidad de los Andes, Bogotá, Colombia
| | - Alejandro Cifuentes
- Laboratory of Foodomics, Institute of Food Science Research (CIAL), CSIC, Madrid, Spain
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Isolation, Characterization, and Antibiofilm Activity of Pigments Synthesized by Rhodococcus sp. SC1. Curr Microbiol 2021; 79:15. [PMID: 34905097 DOI: 10.1007/s00284-021-02694-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2021] [Accepted: 10/12/2021] [Indexed: 10/19/2022]
Abstract
Infections from multi-drug resistant bacteria and biofilms constitute a serious problem worldwide. There is a need for new antibacterial and antibiofilm compounds in the fight against infectious diseases. In recent years, pigment-producing microorganisms have drawn a great deal of attention as a promising source for antibacterial and antibiofilm compounds. Here, we report the antibacterial and antibiofilm activity of pigments synthesized by bacteria isolated from soil. This study aimed to perform an evaluation of the antibacterial, antibiofilm, and characteristic of crude pigments from Rhodococcus sp. SC1 isolates. The total pigment extract exhibited antibacterial activity against Gram-positive and Gram-negative reference bacteria with required minimum inhibitory concentration (MIC) values ranging from 64 to 256 µg/ml. Moreover, it reduced biofilm formation of Gram-negative reference bacteria at sub-MIC concentration. For characterization of the pigments, UV-absorbance, thin layer chromatography, fourier transform infrared spectroscopy, and QTOF-LC/MS analyses were performed. The results of this study showed that pigments of Rhodococcus sp. SC1 isolates can be a candidate for medical applications.
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8
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Yang Y, Khan BM, Zhang X, Zhao Y, Cheong KL, Liu Y. Advances in Separation and Purification of Bioactive Polysaccharides through High-speed Counter-Current Chromatography. J Chromatogr Sci 2021; 58:992-1000. [PMID: 32901274 DOI: 10.1093/chromsci/bmaa063] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2019] [Revised: 07/20/2020] [Accepted: 08/10/2020] [Indexed: 12/17/2022]
Abstract
Polysaccharides, with an extensive distribution in natural products, represent a group of natural bioactive substances having widespread applications in health-care food products and as biomaterials. Devising an efficient system for the separation and purification of polysaccharides from natural sources, hence, is of utmost importance in the widespread applicability and feasibility of research for the development of polysaccharide-based products. High-speed counter-current chromatography (HSCCC) is a continuous liquid-liquid partitioning chromatography with the ability to support a high loading amount and crude material treatment. Due to its flexible two-phase solvent system, HSCCC has been successfully used in the separation of many natural products. Based on HSCCC unique advantages over general column chromatography and its enhanced superiority in this regard when coupled to aqueous two-phase system (ATPS), this review summarizes the separation and purification of various bioactive polysaccharides through HSCCC and its coupling to ATPS as an aid in future research in this direction.
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Affiliation(s)
- Yu Yang
- Guangdong Provincial Key Laboratory of Marine Biotechnology, STU-UNIVPM Joint Algal Research Center, Department of Biology, College of Science, Shantou University, Daxue Road, Jinping District, Shantou, Guangdong 515063, PR China
| | - Bilal Muhammad Khan
- Guangdong Provincial Key Laboratory of Marine Biotechnology, STU-UNIVPM Joint Algal Research Center, Department of Biology, College of Science, Shantou University, Daxue Road, Jinping District, Shantou, Guangdong 515063, PR China
| | - Xiping Zhang
- Department of Mechanical Engineering, College of Engineering, Shantou University, Daxue Road, Jinping District, Shantou, Guangdong 515063, P.R. China
| | - Yongjie Zhao
- Department of Mechanical Engineering, College of Engineering, Shantou University, Daxue Road, Jinping District, Shantou, Guangdong 515063, P.R. China
| | - Kit-Leong Cheong
- Guangdong Provincial Key Laboratory of Marine Biotechnology, STU-UNIVPM Joint Algal Research Center, Department of Biology, College of Science, Shantou University, Daxue Road, Jinping District, Shantou, Guangdong 515063, PR China
| | - Yang Liu
- Guangdong Provincial Key Laboratory of Marine Biotechnology, STU-UNIVPM Joint Algal Research Center, Department of Biology, College of Science, Shantou University, Daxue Road, Jinping District, Shantou, Guangdong 515063, PR China
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Geng J, Zhao L, Zhang H. Formation mechanism of isoprene compounds degraded from carotenoids during fermentation of goji wine. FOOD QUALITY AND SAFETY 2021. [DOI: 10.1093/fqsafe/fyaa033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract
Fermented goji wine as a functional wine is made from yeast fermentation. To our knowledge, fermented goji wine still has a problem with insufficient characteristic aroma. Research has shown that some isoprene compounds with characteristic aromas may improve the aroma of goji wine. Therefore, the present study aimed to investigate the mechanism of isoprene compound production by carotenoid degradation during the fermentation of goji wine. It was found that C1–C6, C5–C6, C6–C7, C7–C8, C8–C9 and C9–C10 were the most easily degraded sites in carotenoids under seven different pretreatment conditions (mechanical treatment, pectinase treatment, adjustment of pH, autoclave treatment, SO2 treatment, oxidation treatment and light treatment). Meanwhile, breaking different sites, different aroma contributions such as woody, rose, fruity and grassy aromas were found. Single-factor simulation experiments of goji wine during the fermentation showed that the metabolites in the fermentation process caused the degradation of carotenoids and most were volatile aroma compounds. These results may help improve the brewing process to enhance the aroma of goji wine.
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Genome-Based Insights into the Production of Carotenoids by Antarctic Bacteria, Planococcus sp. ANT_H30 and Rhodococcus sp. ANT_H53B. Molecules 2020; 25:molecules25194357. [PMID: 32977394 PMCID: PMC7582328 DOI: 10.3390/molecules25194357] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2020] [Revised: 09/17/2020] [Accepted: 09/21/2020] [Indexed: 12/22/2022] Open
Abstract
Antarctic regions are characterized by low temperatures and strong UV radiation. This harsh environment is inhabited by psychrophilic and psychrotolerant organisms, which have developed several adaptive features. In this study, we analyzed two Antarctic bacterial strains, Planococcus sp. ANT_H30 and Rhodococcus sp. ANT_H53B. The physiological analysis of these strains revealed their potential to produce various biotechnologically valuable secondary metabolites, including surfactants, siderophores, and orange pigments. The genomic characterization of ANT_H30 and ANT_H53B allowed the identification of genes responsible for the production of carotenoids and the in silico reconstruction of the pigment biosynthesis pathways. The complex manual annotation of the bacterial genomes revealed the metabolic potential to degrade a wide variety of compounds, including xenobiotics and waste materials. Carotenoids produced by these bacteria were analyzed chromatographically, and we proved their activity as scavengers of free radicals. The quantity of crude carotenoid extracts produced at two temperatures using various media was also determined. This was a step toward the optimization of carotenoid production by Antarctic bacteria on a larger scale.
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Marine Terpenoids from Polar Latitudes and Their Potential Applications in Biotechnology. Mar Drugs 2020; 18:md18080401. [PMID: 32751369 PMCID: PMC7459527 DOI: 10.3390/md18080401] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2020] [Revised: 07/24/2020] [Accepted: 07/25/2020] [Indexed: 01/03/2023] Open
Abstract
Polar marine biota have adapted to thrive under one of the ocean’s most inhospitable scenarios, where extremes of temperature, light photoperiod and ice disturbance, along with ecological interactions, have selected species with a unique suite of secondary metabolites. Organisms of Arctic and Antarctic oceans are prolific sources of natural products, exhibiting wide structural diversity and remarkable bioactivities for human applications. Chemical skeletons belonging to terpene families are the most commonly found compounds, whereas cytotoxic antimicrobial properties, the capacity to prevent infections, are the most widely reported activities from these environments. This review firstly summarizes the regulations on access and benefit sharing requirements for research in polar environments. Then it provides an overview of the natural product arsenal from Antarctic and Arctic marine organisms that displays promising uses for fighting human disease. Microbes, such as bacteria and fungi, and macroorganisms, such as sponges, macroalgae, ascidians, corals, bryozoans, echinoderms and mollusks, are the main focus of this review. The biological origin, the structure of terpenes and terpenoids, derivatives and their biotechnological potential are described. This survey aims to highlight the chemical diversity of marine polar life and the versatility of this group of biomolecules, in an effort to encourage further research in drug discovery.
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Wang J, Liu Q, Xie B, Sun Z. Effect of ultrasound combined with ultraviolet treatment on microbial inactivation and quality properties of mango juice. ULTRASONICS SONOCHEMISTRY 2020; 64:105000. [PMID: 32106065 DOI: 10.1016/j.ultsonch.2020.105000] [Citation(s) in RCA: 42] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2019] [Revised: 01/13/2020] [Accepted: 02/03/2020] [Indexed: 06/10/2023]
Abstract
This work explored the effect of ultraviolet-assisted ultrasound (US-UV) as an emerging non-thermal sterilization technology on mango juice in aspects of microbial growth and quality changes. The juice in the ice bath was subjected to US-UV treatment at different US powers (0-600 W) and times (0-40 min), and no pathogen bacteria could be detected after treatment, while the physicochemical features (particle size, suspension stability, color, content of total polyphenols, carotenoids, sugar, reducing sugar and protein) and antioxidant ability of treated juice was preserved or improved to some extent. Based on these results, we further validated its positive effects on the nutritional value (content of ascorbic acid and soluble dietary fiber, antioxidant ability) and quality parameters (titratable acid, sugar acidity, total soluble solids, rheological behavior, metal elements) of mango juice treated at the optimal US parameter (10 min, 600 W); Not only the inactivation of polyphenol oxidation enzyme, peroxidase and pectin methylesterase was achieved but also the treated juice has a significant different volatile profile compared with the fresh juice, which might offer the better color, texture, and smell. Importantly, through the HPLC-MSD-Trap-XCT (phenols) and UPLC-Q Exactive Orbitrap-MS (carotenoids) study, the US-UV treatment will not cause difference on compounds composition, but it was responsible for changes in content of individual compounds, especially the all-trans-β-carotene, became the main component of carotenoids in processed mango juice (increased from 43.72% to 75.15%, relative content), and the oxygenated carotenoids (xanthophylls) are highly sensitive to the US (reduced from 50.96% to 4.85%) while the carotenes show a strong resistance to the US (increased 49.04% to 95.15%). Thus, the overall safety and quality of mango juice were enhanced while the sensory characteristics remained stable, suggesting that this non-thermal combination sterilization processing may successfully be implemented in the commercial processing of mango juice.
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Affiliation(s)
- Jingyi Wang
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Qiudou Liu
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Bijun Xie
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China
| | - Zhida Sun
- College of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, People's Republic of China.
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13
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Bacteria as an alternate biofactory for carotenoid production: A review of its applications, opportunities and challenges. J Funct Foods 2020. [DOI: 10.1016/j.jff.2020.103867] [Citation(s) in RCA: 56] [Impact Index Per Article: 14.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
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Kan X, Yan Y, Ran L, Lu L, Mi J, Zhang Z, Li X, Zeng X, Cao Y. Ultrasonic-assisted extraction and high-speed counter-current chromatography purification of zeaxanthin dipalmitate from the fruits of Lycium barbarum L. Food Chem 2019; 310:125854. [PMID: 31784067 DOI: 10.1016/j.foodchem.2019.125854] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2019] [Revised: 09/23/2019] [Accepted: 10/31/2019] [Indexed: 12/31/2022]
Abstract
Zeaxanthin dipalmitate (ZDP) is a major non-saponified carotenoid in fully ripe fruits of Lycium barbarum L. In the present study, response surface methodology was used to optimize the ultrasonic-assisted extraction (UAE) conditions of carotenoids from the fruits of L. barbarum, and the optimal extraction conditions were determined as follows: ultrasonic power of 360 W, ultrasonic time of 40 min and the ratio of extraction solvent to sample of 30 mL/g. An actual value of ZDP content of 5.40 mg/g and short extraction time indicated the efficiency of UAE. Furthermore, a promising high-speed counter-current chromatography (HSCCC) method was established for the purification of ZDP from the fruits of L. barbarum. With a developed two-phase solvent system composed of n-hexane/dichloromethane/acetonitrile (10/3/7, v/v/v), ZDP with a purity of higher than 95% was successfully isolated from the crude extract. This is the first report on the purification of ZDP by using HSCCC.
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Affiliation(s)
- Xuhui Kan
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China
| | - Yamei Yan
- National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, China
| | - Linwu Ran
- Laboratory Animal Center, Ningxia Medical University, Yinchuan 750004, Ningxia, China
| | - Lu Lu
- National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, China
| | - Jia Mi
- National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, China
| | - Zhijuan Zhang
- National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, China
| | - Xiaoying Li
- National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, China
| | - Xiaoxiong Zeng
- College of Food Science and Technology, Nanjing Agricultural University, Nanjing 210095, Jiangsu, China.
| | - Youlong Cao
- National Wolfberry Engineering Research Center, Yinchuan 750002, Ningxia, China.
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15
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do Nascimento TC, Cazarin CB, Roberto Maróstica M, Risso ÉM, Amaya-Farfan J, Grimaldi R, Mercadante AZ, Jacob-Lopes E, Zepka LQ. Microalgae biomass intake positively modulates serum lipid profile and antioxidant status. J Funct Foods 2019. [DOI: 10.1016/j.jff.2019.04.047] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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16
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Chen Y, Guo M, Yang J, Chen J, Xie B, Sun Z. Potential TSPO Ligand and Photooxidation Quencher Isorenieratene from Arctic Ocean Rhodococcus sp. B7740. Mar Drugs 2019; 17:md17060316. [PMID: 31146377 PMCID: PMC6627809 DOI: 10.3390/md17060316] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2019] [Revised: 05/18/2019] [Accepted: 05/20/2019] [Indexed: 12/18/2022] Open
Abstract
Due to its special aromatic structure, isorenieratene is thought to be an active natural antioxidant and photo/UV damage inhibitor. In this work, isorenieratene that was extracted from Rhodococcus sp. B7740 isolated from the Arctic Ocean, showed excellent scavenging ability of both singlet oxygen and hydroxyl radical in the UVB-induced auto-oxidation process using the EPR method. Within an ARPE-19 cell model damaged by UVB radiation, isorenieratene showed fine protective effects (1.13 ± 0.03 fold) compared with macular xanthophylls (MXs) through upregulating of tspo. The molecular docking was firstly performed to investigate the interaction of isorenieratene with TSPO as a special ligand. Results showed isorenieratene might form a better binding conformation (S-score −8.5438) than MXs and indicate that isorenieratene not only can function as a direct antioxidant but also activate tspo in ARPE-19 cells. Thus, isorenieratene might ease the UV-related damages including age-related macular degeneration (AMD).
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Affiliation(s)
- Yashu Chen
- Natural Product Laboratory, Department of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Mengyao Guo
- Agricultural Bioinformatics Key Laboratory of Hubei Province, College of informatics, Huazhong Agricultural University, Wuhan 430070, China.
| | - Jifang Yang
- College of Biological and Environmental Science, Zhejiang Wanli University, Ningbo 315100, China.
| | - Jigang Chen
- College of Biological and Environmental Science, Zhejiang Wanli University, Ningbo 315100, China.
| | - Bijun Xie
- Natural Product Laboratory, Department of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
| | - Zhida Sun
- Natural Product Laboratory, Department of Food Science and Technology, Huazhong Agricultural University, Wuhan 430070, China.
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17
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Characterization of MK₈(H₂) from Rhodococcus sp. B7740 and Its Potential Antiglycation Capacity Measurements. Mar Drugs 2018; 16:md16100391. [PMID: 30340371 PMCID: PMC6213960 DOI: 10.3390/md16100391] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 09/23/2018] [Accepted: 10/11/2018] [Indexed: 12/18/2022] Open
Abstract
Menaquinone (MK) has an important role in human metabolism as an essential vitamin (VK2), which is mainly produced through the fermentation of microorganisms. MK8(H2) was identified to be the main menaquinone from Rhodococcus sp. B7740, a bacterium isolated from the arctic ocean. In this work, MK8(H2) (purity: 99.75%) was collected through a convenient and economic extraction process followed by high-speed countercurrent chromatography (HSCCC) purification. Additionally, high-resolution mass spectrometry (HRMS) was performed for further identification and the hydrogenation position of MK8(H2) (terminal unit) was determined using nuclear magnetic resonance (NMR) for the first time. MK8(H2) showed a superior antioxidant effect and antiglycation capacity compared with ubiquinone Q10 and MK4. High-performance liquid chromatography–mass spectrometer (HPLC-MS/MS) and molecular docking showed the fine interaction between MK8(H2) with methylglyoxal (MGO) and bull serum albumin (BSA), respectively. These properties make MK8(H2) a promising natural active ingredient with future food and medicine applications.
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18
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Isorenieratene interaction with human serum albumin: Multi-spectroscopic analyses and docking simulation. Food Chem 2018; 258:393-399. [DOI: 10.1016/j.foodchem.2018.02.105] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2017] [Revised: 02/03/2018] [Accepted: 02/20/2018] [Indexed: 01/19/2023]
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