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Hamazaki Y, Kato M, Karasawa K. Methylnigakinone content determination and geographical origin discrimination for P. quassioides via fluorescence fingerprint and principal component analyses. J Pharm Biomed Anal 2022; 219:114932. [PMID: 35870280 DOI: 10.1016/j.jpba.2022.114932] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2022] [Revised: 07/04/2022] [Accepted: 07/05/2022] [Indexed: 11/29/2022]
Abstract
Picrasma quassioides is used as a bittersweet stomach medicine. Because it is a natural product obtained from various geographical regions, the production area is important when P. quassioides is used as a crude drug. Herein, we developed a method to determine the content of methylnigakinone, one of the major active ingredients in P. quassioides, and a protocol for discriminating the geographical origin of this natural product using a fluorescence fingerprint analysis and principal component analysis (PCA). Because methylnigakinone is fluorescent (excitation wavelength: 352 nm, emission wavelength: 458 nm), the content of this molecule can be determined in the concentration range of 0.1-1 μg/mL. The quantification results of methylnigakinone obtained using the developed method were similar to those obtained from an HPLC analysis. Furthermore, the PCA of the fluorescence fingerprint of P. quassioides produced a score plot with the three different geographical origins (Kyushu island (Japan), Shikoku island (Japan), and China) plotted in the regions. Thus, it was possible to discriminate the geographical origin of the P. quassioides samples. The developed method is simple, quick, and has a minimal environmental impact. Therefore, the developed method will be useful for confirming the origin of P. quassioides.
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Affiliation(s)
- Yasunori Hamazaki
- Department of Bioanalytical Chemistry, School of Pharmacy, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
| | - Masaru Kato
- Department of Bioanalytical Chemistry, School of Pharmacy, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan.
| | - Koji Karasawa
- Department of Bioanalytical Chemistry, School of Pharmacy, Showa University, 1-5-8 Hatanodai, Shinagawa-ku, Tokyo 142-8555, Japan
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2
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Yang Q, Mei X, Wang Z, Chen X, Zhang R, Chen Q, Kan J. Comprehensive identification of non-volatile bitter-tasting compounds in Zanthoxylum bungeanum Maxim. by untargeted metabolomics combined with sensory-guided fractionation technique. Food Chem 2021; 347:129085. [PMID: 33493837 DOI: 10.1016/j.foodchem.2021.129085] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 01/06/2021] [Accepted: 01/07/2021] [Indexed: 12/14/2022]
Abstract
Zanthoxylum Bungeanum Maxim. is an important seasoning in Chinese cooking, but its bitter taste limits its use by some consumers. In this study, metabolomic analysis based on ultra-high-performance liquid chromatograph-tandem mass spectrometry (UPLC-MS) was used to screen out a vast number of potential non-volatile bitter compounds in Z. bungeanum. Results showed that there were 37 potential bitter compounds in Z. bungeanum, and possible mechanisms underlying its bitter taste were provided. Further, instrumental analyses combined with sensory evaluation were used to identify the key bitter compounds in Gou jiao, a wild variant of Z. Bungeanum with a strong bitter taste. Totally 15 key bitter compounds were identified, most of which have a low bitterness recognition threshold. This study is the first comprehensive identification of non-volatile bitter compounds in Z. bungeanum and provides a basis for future investigations into mitigating bitterness and uncovering how the interaction between different bitter compounds affects taste.
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Affiliation(s)
- Qingqing Yang
- College of Food Science, Southwest University, 2 Tiansheng Road, Beibei, Chongqing, 400715, PR China; Laboratory of Quality & Safety Risk Assessment for Agro-products on Storage and Preservation (Chongqing), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Chongqing, 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing, 400715, PR China
| | - Xiaofei Mei
- College of Food Science, Southwest University, 2 Tiansheng Road, Beibei, Chongqing, 400715, PR China; Laboratory of Quality & Safety Risk Assessment for Agro-products on Storage and Preservation (Chongqing), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Chongqing, 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing, 400715, PR China
| | - Zhirong Wang
- College of Food Science, Southwest University, 2 Tiansheng Road, Beibei, Chongqing, 400715, PR China; Laboratory of Quality & Safety Risk Assessment for Agro-products on Storage and Preservation (Chongqing), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Chongqing, 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing, 400715, PR China
| | - Xuhui Chen
- College of Food Science, Southwest University, 2 Tiansheng Road, Beibei, Chongqing, 400715, PR China; Laboratory of Quality & Safety Risk Assessment for Agro-products on Storage and Preservation (Chongqing), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Chongqing, 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing, 400715, PR China
| | - Rui Zhang
- College of Food Science, Southwest University, 2 Tiansheng Road, Beibei, Chongqing, 400715, PR China; Laboratory of Quality & Safety Risk Assessment for Agro-products on Storage and Preservation (Chongqing), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Chongqing, 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing, 400715, PR China
| | - Qiaoli Chen
- College of Food Science, Southwest University, 2 Tiansheng Road, Beibei, Chongqing, 400715, PR China; Laboratory of Quality & Safety Risk Assessment for Agro-products on Storage and Preservation (Chongqing), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Chongqing, 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing, 400715, PR China
| | - Jianquan Kan
- College of Food Science, Southwest University, 2 Tiansheng Road, Beibei, Chongqing, 400715, PR China; Laboratory of Quality & Safety Risk Assessment for Agro-products on Storage and Preservation (Chongqing), Ministry of Agriculture and Rural Affairs of the People's Republic of China, Chongqing, 400715, PR China; Chinese-Hungarian Cooperative Research Centre for Food Science, Chongqing, 400715, PR China.
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Patel K, Patel DK. Health Benefits of Quassin from Quassia amara: A Comprehensive Review of their Ethnopharmacological Importance, Pharmacology, Phytochemistry and Analytical Aspects. CURRENT NUTRITION & FOOD SCIENCE 2020. [DOI: 10.2174/1573401314666181023094645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
:
Medicinal plants have been indispensable to human life as they are used in food,
cosmetics, medicines, nutraceuticals, perfumery, beverages and many more sectors. The medicinal
plant contains various important classes of phytochemicals and broadly they are categorized into either
primary or secondary metabolite. A large number of modern medicines are mainly derived from
plant and other natural sources. Medicinal properties of plants are mainly due to the presence of their
secondary metabolite and good examples are salicylic acid, morphine, quinine, vincristin and
vinblastine. In spite of the great discovery of allopathic medicine, plant pure phytoconstituents play
an important role in the modern medicine. Various plant based medicine are available in the market
and people are using it on the basis of the belief that it is safer compared to the allopathic medicine.
Furthermore, based on these believes, people use most of the traditional medicines in their routine
life for the treatment of numerous disorders and this is called self-medication. Quassia amara plant
belongs to Simaroubaceae family which is one of the best examples of the self-medicated plant. Traditionally
Quassia amara has antimalarial, stomachic, antianaemic, antibiotics, cytotoxic and
antiamoebic activity. Its reproductive, insecticidal, larvicidal and vermifuge properties have been also
reported in the literature. Quassinoids are the important phytoconstituents of this plant and are the
main bitter principles of Quassia amara too. Quassin is a white crystalline substance and is widely
used in Chinese herbal medicine for their bitter taste. The purpose of this review is to gain an understanding
of the Quassin and Quassia amara and to present information and knowledge regarding this
phytoconstituent. Medicinal uses, pharmacological importance and various bioanalytical methods of
Quassin and Quassia amara have been presented in this review. The benefit of this review is to get
better understanding and ideas of Quassin and Quassia amara research findings in various disciplines.
Furthermore, there is a need to perform more scientific investigation to explore the other beneficial
properties of Quassia amara and Quassin.
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Affiliation(s)
- Kanika Patel
- Department of Pharmaceutical science, Shalom Institute of Health and Allied Sciences, Faculty of Health Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad 211007, Uttar Pradesh, India
| | - Dinesh Kumar Patel
- Department of Pharmaceutical science, Shalom Institute of Health and Allied Sciences, Faculty of Health Sciences, Sam Higginbottom University of Agriculture, Technology and Sciences, Allahabad 211007, Uttar Pradesh, India
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Assari S, Bazargan M. Unequal Associations between Educational Attainment and Occupational Stress across Racial and Ethnic Groups. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2019; 16:ijerph16193539. [PMID: 31546681 PMCID: PMC6801852 DOI: 10.3390/ijerph16193539] [Citation(s) in RCA: 46] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/25/2019] [Revised: 09/16/2019] [Accepted: 09/17/2019] [Indexed: 01/22/2023]
Abstract
Background: Although other mechanisms are also involved, at least one reason high educational attainment (EA) is associated with better health is lower employment stress in individuals with high EA. Minorities’ Diminished Returns, however, refer to the smaller protective health effects of EA for racial- and ethnic-minority individuals, particularly African Americans (AAs) and Hispanics, as compared to Whites. We are, however, not aware of many studies that have explored differential associations between EA and work-related stress across racial and ethnic groups. Aims: We aimed to compare racial and ethnic groups for the association between EA and occupational stress in a national sample of American adults. Methods: The National Health Interview Survey (NHIS 2015), a cross-sectional survey, included 15,726 employed adults. Educational attainment was the independent variable. Occupational stress was the outcome. Race and ethnicity were the moderators. Age, gender, number of jobs, and years in the job were the covariates. Results: Overall, higher EA was associated with lower levels of occupational stress. Race and ethnicity both interacted with EA, suggesting that the association between high EA and reduced occupational stress is systemically smaller for AAs and Hispanics than it is for Whites. Conclusions: In the United States, race and ethnicity limit the health gains that follow EA. While EA helps individuals avoid environmental risk factors, such as occupational stress, this is more valid for non-Hispanic Whites than AAs and Hispanics. The result is additional physical and mental health risks in highly educated AAs and Hispanics. The results are important, given racial and ethnic minorities are the largest growing section of the US population. We should not assume that EA is similarly protective across all racial and ethnic groups. In this context, EA may increase, rather than reduce, health disparities.
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Affiliation(s)
- Shervin Assari
- Departments of Family Medicine, College of Medicine, Charles R Drew University of Medicine and Science, Los Angeles, CA 90059, USA.
| | - Mohsen Bazargan
- Departments of Family Medicine, College of Medicine, Charles R Drew University of Medicine and Science, Los Angeles, CA 90059, USA.
- Departments of Family Medicine, University of California, Los Angeles (UCLA), Los Angeles, CA 90095, USA.
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Nishizaki Y, Tada A, Ishizuki K, Ito Y, Onoda A, Sugimoto N, Akiyama H. [Development of a Novel Method for Quantifying Quassin and Neoquassin in Jamaica Quassia Extracts Using the Molar Absorption Coefficient Ratio]. Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi) 2016; 56:185-93. [PMID: 26537647 DOI: 10.3358/shokueishi.56.185] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A novel HPLC-based method employing molar absorption coefficient ratios to 4-hydroxybenzoic acid (4HBA) was developed for the determination of quassin and neoquassin in Jamaica quassia extract, which is used as a food additive in Japan. Based on comparisons of quantitative NMR (qNMR) spectra and HPLC chromatograms of an artificial mixture of quassin, neoquassin, and 4HBA, the molar absorption coefficient ratios of quassin and neoquassin to 4HBA were determined as 0.84 and 0.85, respectively. Quassin and neoquassin were quantified in food additives by qNMR and HPLC based on molar absorption coefficient ratios using 1,4-bis(trimethylsilyl)benzene-d4 and 4HBA as internal standards, respectively. The differences in quantitation values between qNMR and HPLC analyses were below 1.2%. Our proposed novel HPLC-based quantitation method employing the molar absorption coefficient ratios is a reliable tool for determining levels of quassin and neoquassin in food additives and processed foods.
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