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Krata AA, Domagała J, Głowacki R. Hydrophilic interaction liquid chromatography based method for simultaneous determination of purines and their derivatives in food spices. Food Chem 2024; 441:138285. [PMID: 38176140 DOI: 10.1016/j.foodchem.2023.138285] [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: 10/02/2023] [Revised: 12/16/2023] [Accepted: 12/24/2023] [Indexed: 01/06/2024]
Abstract
This work presents method for separation and quantification of adenine, guanine, xanthine, hypoxanthine, uric acid, and creatinine in food spices using hydrophilic interaction liquid chromatography with UV detection. Optimized conditions allowed separation with mobile phases containing acetonitrile and additives ammonium acetate (90:10, v/v, pH 6.1) or formate (90:10, v/v, pH 3.2). In food spices no uric acid was detected, creatinine (16 ± 2 μg g-1) was found only in instant dried yeast. The highest content of purines was determined in dried yeast (xanthine 110 ± 8 μg g-1, hypoxanthine 441 ± 24 μg g-1, adenine 84 ± 16 μg g-1, guanine 163 ± 12 μg g-1), high in curry, herbal pepper, and chicken seasoning, the lowest concentration was in black pepper (hypoxanthine 12 ± 2 μg g-1, adenine 27 ± 3 μg g-1). To best of our knowledge, no such complementary method and obtained data have been reported so far.
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Affiliation(s)
- Agnieszka Anna Krata
- University of Lodz, Faculty of Chemistry, Department of Environmental Chemistry, Pomorska 163 St., Lodz, Poland.
| | - Julia Domagała
- University of Lodz, Faculty of Chemistry, Department of Environmental Chemistry, Pomorska 163 St., Lodz, Poland.
| | - Rafał Głowacki
- University of Lodz, Faculty of Chemistry, Department of Environmental Chemistry, Pomorska 163 St., Lodz, Poland.
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Wang X, Yang S, Lu J, Xie G, Wu D. Screening and application of purine degrading Limosilactobacillus fermentum LF-1 from Huangjiu fermentation broth. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2023; 103:7921-7931. [PMID: 37490358 DOI: 10.1002/jsfa.12881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 06/02/2023] [Accepted: 07/25/2023] [Indexed: 07/27/2023]
Abstract
BACKGROUND As the important building blocks of nucleic acids, purines are alkaloids and responsible for hyperuricemia and gout. The purine content in Huangjiu is higher, and mainly exists in the form of free bases, which is easier to be absorbed by human body. However, the currently available reports on purine in Huangjiu mainly focus on detection methods and content survey. No studies on the regulation of the purine content in Huangjiu have been reported. RESULTS Eighty-four strains, with the degradation capacity of purine, were screened from the fermentation broth of Huangjiu. In detail, the isolated lactic acid bacteria (LAB) strain 75 # showed the strongest degradation ability of guanosine, inosine and four purines, which reduce their levels by 83.4% (guanosine), 97.4% (inosine), 95.1% (adenine), 95.0% (guanine), 94.9% (hypoxanthine) and 65.9% (xanthine), respectively. Subsequently, the LAB strain 75# was identified to be Limosilactobacillus fermentum by 16S rRNA gene sequencing, which was named as Limosilactobacillus fermentum LF-1 and applied to the fermentation of Huangjiu in the laboratory. Compared with the fermentation broth of Huangjiu without adding L. fermentum LF-1, the content of purine compounds in the fermentation broth inoculated with L. fermentum LF-1 was reduced by 64.7%. In addition, the fermented Huangjiu had richer flavor compounds, and the physicochemical indices were in accordance with the national standard of Chinese Huangjiu. CONCLUSION The screened strain L. fermentum LF-1 may be a promising probiotic for the development of a novel that can efficiently degrade purine in Huangjiu. © 2023 Society of Chemical Industry.
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Affiliation(s)
- Xianglin Wang
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi, China
- School of Biotechnology, Jiangnan University, Wuxi, China
| | - Shaojie Yang
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi, China
- School of Biotechnology, Jiangnan University, Wuxi, China
| | - Jian Lu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi, China
- School of Biotechnology, Jiangnan University, Wuxi, China
| | - Guangfa Xie
- Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, China
| | - Dianhui Wu
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
- National Engineering Research Center of Cereal Fermentation and Food Biomanufacturing, Jiangnan University, Wuxi, China
- School of Biotechnology, Jiangnan University, Wuxi, China
- Laboratory of Pollution Exposure and Health Intervention of Zhejiang Province, College of Biology and Environmental Engineering, Zhejiang Shuren University, Hangzhou, China
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Effect on purine releasement of Lentinus edodes by different food processing techniques. Food Chem X 2022; 13:100260. [PMID: 35498996 PMCID: PMC9040045 DOI: 10.1016/j.fochx.2022.100260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2021] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 11/24/2022] Open
Abstract
Freeze-drying could notably decrease the purine release from lentinus edodes. Roast-drying reduced guanine and adenine levels in lentinus edodes. Roast-drying raised the level of strong uricogenic purine hypoxanthine in lentinus edodes. The total purine content was higher than that of raw LE after moist heating.
Lentinus edodes (LE) is very popular in the world and also considered as high purine food. However, few focuses on purine types and its change during food processing. Here, we first compared 3 drying techniques, including roast-drying, freeze-drying, sun-drying on purine contents of LE by using acidolysis and HPLC. It showed that adenine decreased significantly after roast-drying (120 °C), which may be caused by thermal damage of DNA. Total purine decreased significantly after freeze-drying, while roast-dried and sun-dried LE remained unchanged. The effect of moist heat (boiling) on LE purine were also evaluated. Total purine increased due to xanthine increasement (331.72 ± 50.07%). And purine contents transferred into boiled liquid was higher than that in boiled solid. Compared with sun-dry and roast-dry processing, freeze-drying could notably affect the purine release from LE and decrease purine contents. Therefore, freeze-drying is recommended for process techniques for hyperuricemia and gouts populations.
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Simultaneous Determination of Purines and Uric Acid in Chinese Chicken Broth Using TFA/FA Hydrolysis Coupled with HPLC-VWD. Foods 2021; 10:foods10112814. [PMID: 34829096 PMCID: PMC8624923 DOI: 10.3390/foods10112814] [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: 10/21/2021] [Revised: 11/08/2021] [Accepted: 11/09/2021] [Indexed: 11/28/2022] Open
Abstract
Chinese chicken broth is well known for its outstanding nutritional value and flavor, widely consumed in China. This study was designed to develop a sensitive and accurate high-performance liquid chromatography-variable wavelength detector (HPLC-VWD) method to simultaneously determine purines and uric acid in Chinese chicken broth for gout and hyperuricemia dietary management. Chromatographic separation was performed on an Agilent TC-C18 (2) column (4.6 mm × 250 mm, 5.0 µm), using 0.02 M KH2PO4 (pH 4.0) as a mobile phase. Sample pretreatment was optimized to enable the extraction of all analytes from Chinese chicken broth. The optimal pretreatment conditions were chicken broth-60% trifluoroacetic acid (TFA)/20% formic acid (FA) (1:1, v/v) in a volume ratio of 1:3 and hydrolysis for 40 min at 85 °C in a water bath. The limits of detection (LODs) and limits of quantification (LOQs) of the purines and uric acid were 0.58–1.71 µg/L and 1.92–5.70 µg/L, respectively. The recoveries were 91–101%, with the relative standard deviations (RSDs) lower than 3%. The complete method has been successfully applied to determine purines and uric acid in various Chinese chicken soups obtained from different provinces in China.
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Almeida C, Neves MC, Freire MG. Towards the Use of Adsorption Methods for the Removal of Purines from Beer. Molecules 2021; 26:molecules26216460. [PMID: 34770869 PMCID: PMC8587081 DOI: 10.3390/molecules26216460] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2021] [Revised: 10/19/2021] [Accepted: 10/21/2021] [Indexed: 11/25/2022] Open
Abstract
Beer corresponds to a fermented alcoholic beverage composed of several components, including purine compounds. These molecules, when ingested by humans, can be catabolized into uric acid, contributing to uric acid’s level increase in serum, which may lead to hyperuricemia and gout. To assure a proper management of this disease, physicians recommend restrictive dietary measures, particularly by avoiding the consumption of beer. Therefore, it is of relevance to develop efficient methods to remove purine compounds from alcoholic beverages such as beer. In this review, we provide an introduction on fermented alcoholic beverages, with emphasis on beer, as well as its purine compounds and their role in uric acid metabolism in the human body in relation to hyperuricemia and gout development. The several reported enzymatic, biological and adsorption methods envisaging purine compounds’ removal are then reviewed. Some enzymatic and biological methods present drawbacks, which can be overcome by adsorption methods. Within adsorption methods, adsorbent materials, such as activated carbon or charcoal, have been reported and applied to beer or wort samples, showing an excellent capacity for adsorbing and removing purine compounds. Although the main topic of this review is on the removal of purine compounds from beer, other studies involving other matrices rather than beer or wort that are rich in purines are included, since they provide relevant clues on designing efficient removal processes. By ensuring the selective removal of purine compounds from this beverage, beer can be taken by hyperuricemic and gouty patients, avoiding restrictive dietary measures, while decreasing the related healthcare economic burden.
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Hou C, Xiao G, Amakye WK, Sun J, Xu Z, Ren J. Guidelines for purine extraction and determination in foods. FOOD FRONTIERS 2021. [DOI: 10.1002/fft2.100] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Affiliation(s)
- Chuanli Hou
- School of Food Science and Engineering South China University of Technology Guangzhou People's Republic of China
| | - Ganhong Xiao
- School of Food Science and Engineering South China University of Technology Guangzhou People's Republic of China
| | - William Kwame Amakye
- School of Food Science and Engineering South China University of Technology Guangzhou People's Republic of China
| | - Jing Sun
- School of Food Science and Engineering South China University of Technology Guangzhou People's Republic of China
| | - Zhenzhen Xu
- School of Food Science and Engineering South China University of Technology Guangzhou People's Republic of China
| | - Jiaoyan Ren
- School of Food Science and Engineering South China University of Technology Guangzhou People's Republic of China
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Guo X, Wang X, Huang D, Zhang J, Xu D, Yang W, Hu Q, Fang Z, Huang T. Method study on determination of total purine content in fish meat by diazotization reaction combined with SERS. Lebensm Wiss Technol 2020. [DOI: 10.1016/j.lwt.2020.109027] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Recent progress in nanomaterial-based electrochemical and optical sensors for hypoxanthine and xanthine. A review. Mikrochim Acta 2019; 186:749. [DOI: 10.1007/s00604-019-3842-6] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Accepted: 09/16/2019] [Indexed: 12/26/2022]
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Li T, Ren L, Wang D, Song M, Li Q, Li J. Optimization of extraction conditions and determination of purine content in marine fish during boiling. PeerJ 2019; 7:e6690. [PMID: 31119066 PMCID: PMC6507899 DOI: 10.7717/peerj.6690] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2018] [Accepted: 02/27/2019] [Indexed: 11/20/2022] Open
Abstract
Background Gout is the second most common metabolic disease affecting human health. The disease of gout is closely related to the level of uric acid, which is the end-product of human purine metabolism. Moreover, food is the main way of external ingestion of purine. Method A simple and time-saving method was developed to extract purines like adenine, hypoxanthine, guanine, and xanthine from marine fish by single factor design combined with Box-Behnken. The contents of these purines in the edible parts and internal organs of marine fish, as well as Scophthalmus maximus, were determined by high-performance liquid chromatography to investigate the relationship between the boiling process and purine content. Result The mixed-acid method was chosen for the extraction of purine bases and the extraction conditions were as follows: mixture acid 90.00% TFA/80.00% FA (v/v, 1:1); hydrolysis temperature 90.00 °C; time 10.00 min; liquid-to-solid ratio 30:1. The total purine content of the edible parts (eyes, dorsal muscles, abdominal muscles, and skin) was the highest in Scophthalmus maximus, followed by sphyraena, Sardinella, Trichiurus lepturus, Scomberomorus niphonius, Pleuronectiformes, Sea catfish, Anguillidae, and Rajiformes. Moreover, boiling significantly reduced the purine content in the marine fish because of the transfer of the purines to the cooking liquid during boiling. Scophthalmus maximus, Sphyraena, and Sardinella were regard as high-purine marine fish, which we should eat less. We also confirmed that boiling significantly transferred purine bases from fish to cooking liquid. Thus, boiling could reduce the purine content of fish, thereby reducing the risk of hyperuricemia and gout.
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Affiliation(s)
- Tingting Li
- College of Life Science, Dalian Minzu University, Dalian, China
| | - Likun Ren
- College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Dangfeng Wang
- College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Minjie Song
- College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Qiuying Li
- College of Food Science and Technology, Bohai University, Jinzhou, China
| | - Jianrong Li
- College of Food Science and Technology, Bohai University, Jinzhou, China
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