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Zheng Z, Wu L, Deng W, Yi K, Li Y. Polyphenol Composition, Antioxidant Capacity and Xanthine Oxidase Inhibition Mechanism of Furong Plum Fruits at Different Maturity Stages. Foods 2023; 12:4253. [PMID: 38231765 PMCID: PMC10705914 DOI: 10.3390/foods12234253] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2023] [Revised: 11/17/2023] [Accepted: 11/22/2023] [Indexed: 01/19/2024] Open
Abstract
An experiment was conducted on the polyphenol content, flavonoid content, anthocyanin content, and antioxidant capacity of Furong plum (Prunus salicina Lindl. cv. "furong") at different maturity stages to determine the most suitable maturity stage. The inhibition of plum polyphenols on xanthine oxidase (XOD) was measured, and its kinetics were studied to reveal the inhibitory mechanism. The experimental results showed that the polyphenol, flavonoid and anthocyanin contents of plums at the ripe stage were the highest, reaching 320.46 mg GAE/100 g FW, 204.21 mg/100 g FW, and 66.24 mg/100 g FW, respectively, in comparison those of the plums at the immature and mid-ripe stages. The antioxidant capacity of the ripe plums was stronger than it was during the other stages of the plums growth. Among them, the total polyphenols of the ripe plums exhibited the strongest antioxidant capacity (IC50 values against DPPH and hydroxyl radicals were 28.19 ± 0.67 μg/mL and 198.16 ± 7.55 μg/mL, respectively), which was between the antioxidant capacity of the free polyphenols and bound polyphenols. The major phenolic monomer compounds of plum polyphenols were flavan-3-ols (epicatechin, catechin, proanthocyanidin, and procyanidin B2), flavonols (myricetin), and phenolic acids (chlorogenic acid, ferulic acid, and protocatechuic acid). Additionally, plum polyphenols exhibited a strong inhibitory effect on XOD, with an IC50 value of 77.64 μg/mL. The inhibition kinetics showed that plum polyphenols are mixed-type inhibitors that inhibit XOD activity and that the inhibition process is reversible. The calculated values of Ki and α were 16.53 mmol/L and 0.26, respectively.
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Affiliation(s)
- Zhipeng Zheng
- Institute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Li Wu
- Institute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
- Key Laboratory of Subtropical Characteristic Fruits, Vegetables and Edible Fungi Processing (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Fuzhou 350003, China
- Fujian Province Key Laboratory of Agricultural Products (Food) Processing Technology, Fuzhou 350003, China
| | - Wei Deng
- Institute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Kexin Yi
- Institute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
- College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Yibin Li
- Institute of Food Science and Technology, Fujian Academy of Agricultural Sciences, Fuzhou 350003, China
- Key Laboratory of Subtropical Characteristic Fruits, Vegetables and Edible Fungi Processing (Co-Construction by Ministry and Province), Ministry of Agriculture and Rural Affairs, Fuzhou 350003, China
- Fujian Province Key Laboratory of Agricultural Products (Food) Processing Technology, Fuzhou 350003, China
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Lin Z, Li B, Liao M, Liu J, Zhou Y, Liang Y, Yuan H, Li K, Li H. The Physicochemical Attributes, Volatile Compounds, and Antioxidant Activities of Five Plum Cultivars in Sichuan. Foods 2023; 12:3801. [PMID: 37893694 PMCID: PMC10606457 DOI: 10.3390/foods12203801] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2023] [Revised: 10/07/2023] [Accepted: 10/16/2023] [Indexed: 10/29/2023] Open
Abstract
Plum (Prunus salicina Lindl.) is an important stone fruit crop in Sichuan that is increasingly in demand by consumers owing to its flavor and outstanding nutraceutical properties. The physicochemical characteristics, antioxidant capacity, and volatile profiles of five traditional and new plum cultivars in Sichuan were determined using high-performance liquid chromatography and gas chromatography time-of-flight mass spectrometry. The results showed that all plums exhibited an appropriate quality profile for fresh consumption; the new cultivar 'ZH' exhibited the highest soluble solids content, sugar-acid ratio, total phenolic content, total flavonoid content, and antioxidant capacity. High sugar-low acid properties were observed in five plum cultivars. Sucrose was the main sugar, while quinic acid and malic acid were the main organic acids. The plums were rich in volatile compounds and had specific volatile characteristics. A total of 737 volatiles were identified in the plum fruit, and orthogonal partial least-squares discriminant analysis was employed to screen 40 differential volatiles as markers for cultivar distinction. These findings offer comprehensive information on the physicochemical characteristics, antioxidant capacity, and volatile profiles of plums.
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Affiliation(s)
- Zixi Lin
- Institute of Agriculture Products Processing Science and Technology, Sichuan Academy of Agriculture Science, Chengdu 610039, China; (Z.L.); (M.L.); (Y.Z.); (Y.L.); (H.Y.)
| | - Binbin Li
- Institute of Agricultural Products Processing Research, Xinjiang Academy of Agricultural Reclamation Sciences, Shihezi 832000, China;
| | - Maowen Liao
- Institute of Agriculture Products Processing Science and Technology, Sichuan Academy of Agriculture Science, Chengdu 610039, China; (Z.L.); (M.L.); (Y.Z.); (Y.L.); (H.Y.)
| | - Jia Liu
- Horticulture Research Institute, Sichuan Academy of Agricultural Sciences, Chengdu 610039, China;
| | - Yan Zhou
- Institute of Agriculture Products Processing Science and Technology, Sichuan Academy of Agriculture Science, Chengdu 610039, China; (Z.L.); (M.L.); (Y.Z.); (Y.L.); (H.Y.)
| | - Yumei Liang
- Institute of Agriculture Products Processing Science and Technology, Sichuan Academy of Agriculture Science, Chengdu 610039, China; (Z.L.); (M.L.); (Y.Z.); (Y.L.); (H.Y.)
| | - Huaiyu Yuan
- Institute of Agriculture Products Processing Science and Technology, Sichuan Academy of Agriculture Science, Chengdu 610039, China; (Z.L.); (M.L.); (Y.Z.); (Y.L.); (H.Y.)
| | - Ke Li
- College of Food Science, Sichuan Agricultural University, Ya’an 625014, China
| | - Huajia Li
- Institute of Agriculture Products Processing Science and Technology, Sichuan Academy of Agriculture Science, Chengdu 610039, China; (Z.L.); (M.L.); (Y.Z.); (Y.L.); (H.Y.)
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May N, de Sousa Alves Neri JL, Clunas H, Shi J, Parkes E, Dongol A, Wang Z, Jimenez Naranjo C, Yu Y, Huang XF, Charlton K, Weston-Green K. Investigating the Therapeutic Potential of Plants and Plant-Based Medicines: Relevance to Antioxidant and Neuroprotective Effects. Nutrients 2023; 15:3912. [PMID: 37764696 PMCID: PMC10535096 DOI: 10.3390/nu15183912] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Revised: 09/04/2023] [Accepted: 09/05/2023] [Indexed: 09/29/2023] Open
Abstract
Oxidative stress is a common characteristic of psychiatric, neurological, and neurodegenerative disorders. Therefore, compounds that are neuroprotective and reduce oxidative stress may be of interest as novel therapeutics. Phenolic, flavonoid and anthocyanin content, ORAC and DPPH free radical scavenging, and Cu2+ and Fe2+ chelating capacities were examined in variations (fresh/capsule) of Queen Garnet plum (QGP, Prunus salicina), black pepper (Piper nigrum) clove (Syzygium aromaticum), elderberry (Sambucus nigra), lemon balm (Melissa officinalis) and sage (Salvia officinalis), plus two blends (Astralagus membranaceus-lemon balm-rich, WC and R8). The ability of samples to prevent and treat H2O2-induced oxidative stress in SH-SY5Y cells was investigated. Pre-treatment with WC, elderberry, QGP, and clove prevented the oxidative stress-induced reduction in cell viability, demonstrating a neuroprotective effect. Elderberry increased cell viability following oxidative stress induction, demonstrating treatment effects. Clove had the highest phenolic and flavonoid content, DPPH, and Cu2+ chelating capacities, whereas QGP and elderberry were highest in anthocyanins. Black pepper had the highest ORAC and Fe2+ chelating capacity. These findings demonstrate that plant extracts can prevent and treat oxidative stress-induced apoptosis of neuron-like cells in vitro. Further research into phytochemicals as novel therapeutics for oxidative stress in the brain is needed.
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Affiliation(s)
- Naomi May
- Molecular Horizons and School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Julianna Lys de Sousa Alves Neri
- Molecular Horizons and School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Helen Clunas
- Molecular Horizons and School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
- Australian Centre for Cannabinoid Clinical and Research Excellence, New Lambton Heights, NSW 2305, Australia
| | - Jiahua Shi
- Molecular Horizons and School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Ella Parkes
- Molecular Horizons and School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Anjila Dongol
- Molecular Horizons and School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Zhizhen Wang
- Molecular Horizons and School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
- Australian Centre for Cannabinoid Clinical and Research Excellence, New Lambton Heights, NSW 2305, Australia
| | - Carlos Jimenez Naranjo
- Molecular Horizons and School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
- Australian Centre for Cannabinoid Clinical and Research Excellence, New Lambton Heights, NSW 2305, Australia
| | - Yinghua Yu
- Molecular Horizons and School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
- Jiangsu Key Laboratory of Immunity and Metabolism, Department of Pathogen Biology and Immunology, Xuzhou Medical University, Xuzhou 221004, China
| | - Xu-Feng Huang
- Molecular Horizons and School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
- Australian Centre for Cannabinoid Clinical and Research Excellence, New Lambton Heights, NSW 2305, Australia
| | - Karen Charlton
- Molecular Horizons and School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
| | - Katrina Weston-Green
- Molecular Horizons and School of Medical, Indigenous and Health Sciences, Faculty of Science, Medicine and Health, University of Wollongong, Wollongong, NSW 2522, Australia
- Australian Centre for Cannabinoid Clinical and Research Excellence, New Lambton Heights, NSW 2305, Australia
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Nastasi JR, Daygon VD, Kontogiorgos V, Fitzgerald MA. Qualitative Analysis of Polyphenols in Glycerol Plant Extracts Using Untargeted Metabolomics. Metabolites 2023; 13:metabo13040566. [PMID: 37110224 PMCID: PMC10146371 DOI: 10.3390/metabo13040566] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 04/12/2023] [Accepted: 04/13/2023] [Indexed: 04/29/2023] Open
Abstract
Glycerol is a reliable solvent for extracting polyphenols from food and waste products. There has been an increase in the application of glycerol over benchmark alcoholic solvents such as ethanol and methanol for natural product generation because of its non-toxic nature and high extraction efficiency. However, plant extracts containing a high glycerol concentration are unsuitable for mass spectrometry-based investigation utilising electrospray ionization, inhibiting the ability to analyse compounds of interest. In this investigation, a solid phase extraction protocol is outlined for removing glycerol from plant extracts containing a high concentration of glycerol and their subsequent analysis of polyphenols using ultra-performance liquid chromatography coupled with quadrupole time of flight tandem mass spectrometry. Using this method, glycerol-based extracts of Queen Garnet Plum (Prunus salicina) were investigated and compared to ethanolic extracts. Anthocyanins and flavonoids in high abundance were found in both glycerol and ethanol extracts. The polyphenol metabolome of Queen Garnet Plum was 53% polyphenol glycoside derivatives and 47% polyphenols in their aglycone forms. Furthermore, 56% of the flavonoid derivates were found to be flavonoid glycosides, and 44% were flavonoid aglycones. In addition, two flavonoid glycosides not previously found in Queen Garnet Plum were putatively identified: Quercetin-3-O-xyloside and Quercetin-3-O-rhamnoside.
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Affiliation(s)
- Joseph Robert Nastasi
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Venea Dara Daygon
- Queensland Metabolomics and Proteomics Facility, Metabolomics Australia, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Vassilis Kontogiorgos
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Melissa A Fitzgerald
- School of Agriculture and Food Sciences, The University of Queensland, Brisbane, QLD 4072, Australia
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Quality Assessment of Burdekin Plum ( Pleiogynium timoriense) during Ambient Storage. Molecules 2023; 28:molecules28041608. [PMID: 36838596 PMCID: PMC9958931 DOI: 10.3390/molecules28041608] [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: 12/03/2022] [Revised: 01/11/2023] [Accepted: 02/01/2023] [Indexed: 02/10/2023] Open
Abstract
Pleiogynium timoriense, commonly known as Burdekin plum (BP), is among many Australian native plants traditionally used by Indigenous people. However, only limited information is available on the nutritional and sensory quality of BP grown in Australia as well as its changes during storage. Therefore, this study evaluated the quality of BP during one week of ambient storage (temperature 21 °C, humidity 69%). Proximate analysis revealed a relatively high dietary fiber content in BP (7-10 g/100 g FW). A significant reduction in fruit weight and firmness (15-30% and 60-90%, respectively) with distinguishable changes in flesh color (ΔE > 3) and an increase in total soluble solids (from 11 to 21 °Brix) could be observed during storage. The vitamin C and folate contents in BP ranged from 29 to 59 mg/100g FW and 0.3 to 5.9 μg/100g FW, respectively, after harvesting. A total phenolic content of up to 20 mg GAE/g FW and ferric reducing antioxidant power of up to 400 μmol Fe2+/g FW in BP indicate a strong antioxidant capacity. In total, 34 individual phenolic compounds were tentatively identified in BP including cyanidin 3-galactoside, ellagic acid and gallotannins as the main phenolics. Principle component analysis (PCA) of the quantified phenolics indicated that tree to tree variation had a bigger impact on the phenolic composition of BP than ambient storage. Sensory evaluation also revealed the diversity in aroma, appearance, texture, flavor and aftertaste of BP. The results of this study provide crucial information for consumers, growers and food processors.
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Liu Q, Guo X, Du J, Guo Y, Guo X, Kou L. Comparative analysis of husk microstructure, fruit quality and concentrations of bioactive compounds of different pomegranate cultivars during low temperature storage. FOOD BIOSCI 2023. [DOI: 10.1016/j.fbio.2023.102400] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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