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Sheng L, Yang Y, Zhang Y, Li N. Chemical constituents of Patrinia heterophylla Bunge and selective cytotoxicity against six human tumor cells. J Ethnopharmacol 2019; 236:129-135. [PMID: 30853646 DOI: 10.1016/j.jep.2019.03.005] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 03/03/2019] [Accepted: 03/03/2019] [Indexed: 06/09/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Patrinia heterophylla Bunge, known as "Mu-Tou-Hui" in China, is distributed in most provinces and regions of China. As a traditional medicinal plant, which was first found in <Ben- Cao-Gang- Mu>. In many traditional herbal books, there are records of "Mu-Tou-Hui" of treatment for uterine bleeding, cancer, swelling pain, leukemia, etc. However, there are few studies on the chemical constituents of Patrinia heterophylla Bunge. AIM OF THE STUDY To investigate the chemical constituents of P. heterophylla and the basis of their antitumor activity. MATERIALS AND METHODS 15 compounds were isolated from roots and rhizomes of P. heterophylla by repeating various column chromatography techniques, whose structures were determined by organic spectrum analysis methods and compared with published data. The cytotoxicities were evaluated by MTT assay on six cancer cell lines: human melanoma cell (A375), human hepatocellular carcinoma cell (SMMC-7721), human gastric cancer cell (SGC-7901), human cervical cancer cell (HeLa), human colon cancer cell (HCT-116), and human breast cancer cell (MDA-MB-231). The apoptosis-inducing activities of compounds 1, 5, 12 and 15 in A375 tumor cell determined by flow cytometry. RESULT Five phenylpropanoids, ethyl caffeate (1), coniferaldehyde (5), trans-p-coumaryl aldehyde (6), caffeic acid methyl ester (12), and 3,4-dihydroxycinnamic acid (15), four acetophenones, 1-(2,4-dihydroxyphenyl) ethanone (2), 2',5'-Dihydroxyacetophenone (3), cynanchone A (8), and cynandione A (10), two phenols, vanillin (4) and catechol (9), two iridoids, sarracenin (7) and patriscabrol (11), one alkane, tetracosane (14), and one coumarin, scopoletin (13), were isolated from the EtOH extracts. Of them, compounds 1-10, 12 and 14-15 were isolated for the first time from the roots of P. heterophylla. Compounds 1 and 15 were reported for the first time with in vitro inhibitory activity against tumor cells. MTT assay showed that compounds 1, 5-9, 12-13 and 15 had selective cytotoxic activities (IC50 27.20-163.03 μM) against tumor cells. Apoptosis detected by flow cytometry revealed that compounds 1, 5, 12 and 15 can induce apoptosis for A375 at low concentrations when the concentrations of compounds 1, 5, 12 and 15 are the value of 14, 40, 34, 108 μM, the percentages of apoptotic cells were about 50%. CONCLUSIONS Compounds 1-10, 12 and 14-15 were isolated for the first time from the P. heterophylla. This result enriches the previous studies on the chemical constituents of P. heterophylla. Compounds 1 and 15 were reported for the first time to have cytotoxic activities against tumor cells. Compounds 1, 5, 6, 7, 12, 15 showed cytotoxic activities against tumor cells. This result reveals that the active ingredient of P. heterophylla are composed of phenylpropanoids, iridoids and coumarins. This study provides some theoretical basis for the anti-tumor research of P. heterophylla.
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Affiliation(s)
- Li Sheng
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, PR China.
| | - Yue Yang
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, PR China.
| | - Yi Zhang
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, PR China.
| | - Ning Li
- Anhui Key Laboratory of Bioactivity of Natural Products, School of Pharmacy, Anhui Medical University, 81 Meishan Road, Hefei, 230032, PR China.
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Saha MR, Dey P, Sarkar I, De Sarker D, Haldar B, Chaudhuri TK, Sen A. Acacia nilotica leaf improves insulin resistance and hyperglycemia associated acute hepatic injury and nephrotoxicity by improving systemic antioxidant status in diabetic mice. J Ethnopharmacol 2018; 210:275-286. [PMID: 28859934 DOI: 10.1016/j.jep.2017.08.036] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/09/2017] [Revised: 08/21/2017] [Accepted: 08/27/2017] [Indexed: 06/07/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Acacia nilotica (L.) Delile is used as a traditional anti-diabetic remedy in Bangladesh, Pakistan, Egypt, Nigeria and is mentioned in Ayurveda as well. AIM The objective of the study was to evaluate the ethnomedicinal claim of A. nilotica leaf (ANL) extract for its efficiency in ameliorating diabetic complications. MATERIALS AND METHODS ANL was orally administrated (50 and 200mg/kg) to alloxanized mice (blood glucose > 200mg/dL) for 20d. Parameters of glucose metabolism, hepatotoxicity, hyperlipidemia and nephrotoxicity were measured with emphasis on elevated oxidative stress. ANL was chemically characterized using GC-MS. Further, docking studies were employed to predict molecular interactions. RESULTS ANL lowered (65%, P< 0.001) systemic glucose load in diabetic mice, which was otherwise 398% higher than control. ANL lowered (35%) insulin resistance, without any significant effect on insulin sensitivity (P> 0.05). Anti-hyperglycemic properties of ANL was further supported by lowering of HbA1c (34%; P< 0.001) and improved glucose utilization (OGTT). Overall diabetic complications were mitigated as reflected by lowered hepatic (ALT, AST) and renal (creatinine, BUN) injury markers and normalization of dyslipidemia. Elevated systemic oxidative stress was lowered by increased catalase and peroxidase activities in liver, kidney and skeletal muscle, resulting in 32% decrease of serum MDA levels. Apart from high phenolic and flavonoid content, tocopherol, catechol and β-sitosterol, identified in ANL, demonstrated substantial binding affinity with Nrf2 protein (5FNQ) reflecting possible crosstalk with intracellular antioxidant defense pathways. CONCLUSION The present study revealed the potentials of A. nilotica to alleviate diabetes-related systemic complications by limiting oxidative stress which justified the ethnopharmacological antidiabetic claim.
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Affiliation(s)
- Manas Ranjan Saha
- Molecular Genetics Laboratory, Department of Botany, University of North Bengal, Siliguri 734013, West Bengal, India.
| | - Priyankar Dey
- Cellular Immunology Laboratory, Department of Zoology, University of North Bengal, Siliguri 734013, West Bengal, India; Human Nutrition Program, Department of Human Sciences, Ohio State University, Columbus, OH 43210, USA.
| | - Indrani Sarkar
- Molecular Genetics Laboratory, Department of Botany, University of North Bengal, Siliguri 734013, West Bengal, India.
| | - Dilip De Sarker
- Department of Botany, Raiganj University, Raiganj 733134, West Bengal, India.
| | - Biswajit Haldar
- Department of Pathology, North Bengal Medical College, Sushrutnagar, Siliguri 734012, West Bengal, India.
| | - Tapas Kumar Chaudhuri
- Cellular Immunology Laboratory, Department of Zoology, University of North Bengal, Siliguri 734013, West Bengal, India.
| | - Arnab Sen
- Molecular Genetics Laboratory, Department of Botany, University of North Bengal, Siliguri 734013, West Bengal, India.
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Li H, Lin L, Feng Y, Zhao M, Li X, Zhu Q, Xiao Z. Enrichment of antioxidants from soy sauce using macroporous resin and identification of 4-ethylguaiacol, catechol, daidzein, and 4-ethylphenol as key small molecule antioxidants in soy sauce. Food Chem 2017; 240:885-892. [PMID: 28946355 DOI: 10.1016/j.foodchem.2017.08.001] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2017] [Revised: 07/31/2017] [Accepted: 08/01/2017] [Indexed: 11/25/2022]
Abstract
The adsorption and desorption characteristics of seven macroporous resins on the antioxidants in soy sauce were investigated. SP-207 and SP-825 resins possessing good adsorption and desorption capacities were studied further. The pseudo-second-order kinetics and Langmuir isotherm models were demonstrated to be appropriate to describe the whole exothermic and physical adsorption processes of antioxidants onto resins. The 60% ethanol eluted fraction from soy sauce purified by SP-825 resin column possessed the strongest antioxidant activity. The antioxidant activities and contents of typical soy isoflavones, furanones, pyranones, and phenolic acids in soy sauce were determined. These compounds contributed to 50.02% of the total antioxidant activity of the SP-60% fraction. The key small molecule antioxidant compounds in soy sauce were identified as 4-ethylguaiacol, catechol, daidzein, and 4-ethylphenol by the antioxidants omission experiments. Additionally, the purified active fraction with high contents of antioxidants from soy sauce could be applied as bioactive ingredient in food industry.
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Affiliation(s)
- Huipin Li
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 510640, China
| | - Lianzhu Lin
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 510640, China
| | - Yunzi Feng
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 510640, China.
| | - Mouming Zhao
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 510640, China; Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University, Beijing 100048, China; Shanghai Institute of Technology, Shanghai 201418, China.
| | - Xiuting Li
- Beijing Advanced Innovation Center for Food Nutrition and Human Health, Beijing Technology & Business University, Beijing 100048, China
| | - Qiyuan Zhu
- School of Food Science and Engineering, South China University of Technology, Guangzhou 510640, China; Guangdong Food Green Processing and Nutrition Regulation Technologies Research Center, Guangzhou 510640, China
| | - Zuobing Xiao
- Shanghai Institute of Technology, Shanghai 201418, China
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Chen X, Ren L, Li M, Qian J, Fan J, Du B. Effects of clove essential oil and eugenol on quality and browning control of fresh-cut lettuce. Food Chem 2017; 214:432-439. [PMID: 27507495 DOI: 10.1016/j.foodchem.2016.07.101] [Citation(s) in RCA: 75] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2016] [Revised: 06/26/2016] [Accepted: 07/14/2016] [Indexed: 10/21/2022]
Abstract
This study confirmed the inhibitory effects of clove essential oil (CEO) and eugenol (EUG) on the browning and relevant enzymes of fresh-cut lettuce, and examined associated mechanisms by inhibition kinetics and computational docking analysis. Fresh-cut lettuce was treated with 0.05% CEO and 0.05% EUG solutions, resulting in inhibition of the deterioration of texture quality and browning of the lettuce surface and interior. Compared with the controls, CEO and EUG significantly inhibited the activities of phenylalanine ammonia lyase (PAL), polyphenol oxidase (PPO), and peroxidase (POD, all p<0.05). EUG suppressed PAL, PPO, and POD in vitro in a dose-dependent manner, with IC50 values of 5.4±0.9, 29.5±3.5, and 61.9±6.7mM, respectively. The binding and inhibition effects of EUG on PAL, PPO, and POD, determined by inhibition kinetics and computational docking analysis, established EUG as a competitive inhibitor of these browning-relevant enzymes.
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Affiliation(s)
- Xiangning Chen
- Food Science and Engineering College, Beijing Key Laboratory of Harmful Microorganisms and Pesticide Residues Detection and Control on Agricultural Product, Beijing University of Agriculture, Beijing 102206, China
| | - Lupei Ren
- Department of Food Science and Engineering, College of Biological Sciences and Technology, Beijing Key Laboratory of Forest Food Processing and Safety, Beijing Forestry University, Beijing 100083, China
| | - Menglin Li
- Food Science and Engineering College, Beijing Key Laboratory of Harmful Microorganisms and Pesticide Residues Detection and Control on Agricultural Product, Beijing University of Agriculture, Beijing 102206, China
| | - Jia Qian
- Department of Food Science and Engineering, College of Biological Sciences and Technology, Beijing Key Laboratory of Forest Food Processing and Safety, Beijing Forestry University, Beijing 100083, China
| | - Junfeng Fan
- Department of Food Science and Engineering, College of Biological Sciences and Technology, Beijing Key Laboratory of Forest Food Processing and Safety, Beijing Forestry University, Beijing 100083, China.
| | - Bin Du
- Food Science and Engineering College, Beijing Key Laboratory of Harmful Microorganisms and Pesticide Residues Detection and Control on Agricultural Product, Beijing University of Agriculture, Beijing 102206, China
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Garro MF, Salinas Ibáñez AG, Vega AE, Arismendi Sosa AC, Pelzer L, Saad JR, Maria AO. Gastroprotective effects and antimicrobial activity of Lithraea molleoides and isolated compounds against Helicobacter pylori. J Ethnopharmacol 2015; 176:469-474. [PMID: 26571088 DOI: 10.1016/j.jep.2015.11.009] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/25/2015] [Revised: 10/20/2015] [Accepted: 11/04/2015] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Lithraea molleoides (Vell.) Engl. (Anacardiaceae) is a medicinal plant traditionally used in South America to treat various ailments, including diseases of the digestive system. AIM OF THE STUDY To evaluate the in vivo antiulcer and antimicrobial activities against Helicobacter pylori of L. molleoides and its isolated compounds. MATERIALS AND METHODS Methanolic extract 250 and 500 mg/kg, (LmE 250 and LmE 500, respectively) and infusions, 10 g and 20 g en 100mL (LmI 10 and LmI 20, respectively) of L. molleoides was evaluated for antiulcer activity against 0.6N HCl, 0.2N NaOH, 200mg/kg acetilsalicilic acid and absolute ethanol-induced gastric ulcers in rats. The degree of erosion in the glandular part of the stomach was assessed from a scoring system. Acute toxicity in mice was also evaluated. The antiulcer effect of the isolated compounds (catechol, mannitol, rutin, gallic acid, ferulic acid and caffeic acid, 100mg/kg) was evaluated against absolute ethanol-induced gastric ulcers in rats. The anti-Helicobacter pylori activity of L. molleoides and isolated compounds was performed using broth dilution methods. RESULTS The LmE 250, LmE 500, LmI 10 and LmI 20 produced significant inhibition on the ulcer index in 0.6N HCl, 0.2N NaOH, 200mg/kg acetilsalicilic acid and absolute ethanol- induced gastric ulcers in rats. The isolated compounds, catechol, mannitol, rutin, ferulic acid and caffeic acid were active in absolute ethanol- induced gastric ulcers in rats. L. molleoides and different compounds showed antimicrobial activity in all strains tested. The lowest MIC value (0. 5 μg/mL) was obtained with catechol in six of eleven strains assayed. No signs of toxicity were observed with doses up to 2g/kg in an acute toxicity assay. CONCLUSION These findings indicate that L. molleoides displays potential antiulcerogenic and antimicrobial activities and the identification of active principles could support the use of this plant for the treatment of digestive affections.
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Affiliation(s)
- María Filomena Garro
- Área de Farmacognosia, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700 San Luis, Argentina
| | - Angel Gabriel Salinas Ibáñez
- Área de Microbiología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700, San Luis, Argentina
| | - Alba Edith Vega
- Área de Microbiología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700, San Luis, Argentina
| | - Andrea Celeste Arismendi Sosa
- Área de Microbiología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700, San Luis, Argentina
| | - Lilian Pelzer
- Área de Farmacología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700, San Luis, Argentina
| | - José Roberto Saad
- Área de INTEQUI-Química Orgánica. Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700, San Luis, Argentina
| | - Alejandra Olivia Maria
- Área de Farmacología, Facultad de Química, Bioquímica y Farmacia, Universidad Nacional de San Luis, Chacabuco y Pedernera, CP 5700, San Luis, Argentina.
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Yum S, Jeong S, Lee S, Kim W, Nam J, Jung Y. HIF-prolyl hydroxylase is a potential molecular target for esculetin-mediated anti-colitic effects. Fitoterapia 2015; 103:55-62. [PMID: 25797536 DOI: 10.1016/j.fitote.2015.03.013] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2015] [Revised: 03/09/2015] [Accepted: 03/14/2015] [Indexed: 01/24/2023]
Abstract
We investigated a potential molecular target for anti-colitic effects of esculetin, 6,7-dihydroxycoumarin. Esculetin administered rectally effectively ameliorated TNBS-induced rat colitis and attenuated the expression of pro-inflammatory mediators in the inflamed colon. In human colon carcinoma HCT116 cells, esculetin induced hypoxia-inducible factor-1α (HIF-1α), leading to secretion of vascular endothelial growth factor, a HIF-1 target gene product involved in ulcer healing of the gastrointestinal mucosa. Esculetin directly inhibited HIF prolyl hydroxylase-2 (HPH-2), an enzyme playing a major role in negatively regulating HIF-1α protein stability. Esculetin inhibition of HPH and consequent induction of HIF-1α were attenuated by escalating dose of either ascorbate or 2-ketoglutarate, the required factors of the enzyme. Structurally, the catechol moiety in esculetin was required for HPH inhibition. Collectively, HPH may be a molecular target for esculetin-mediated anti-colitic effects and the catechol moiety in esculetin is the pharmacophore for HPH inhibition.
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Affiliation(s)
- Soohwan Yum
- Laboratory of Biomedicinal Chemistry, College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Seongkeun Jeong
- Laboratory of Biomedicinal Chemistry, College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Sunyoung Lee
- Laboratory of Biomedicinal Chemistry, College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Wooseong Kim
- Laboratory of Biomedicinal Chemistry, College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Joon Nam
- Laboratory of Biomedicinal Chemistry, College of Pharmacy, Pusan National University, Busan, Republic of Korea
| | - Yunjin Jung
- Laboratory of Biomedicinal Chemistry, College of Pharmacy, Pusan National University, Busan, Republic of Korea.
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Navarro M, Morales FJ. Mechanism of reactive carbonyl species trapping by hydroxytyrosol under simulated physiological conditions. Food Chem 2015; 175:92-9. [PMID: 25577056 DOI: 10.1016/j.foodchem.2014.11.117] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 11/14/2014] [Accepted: 11/20/2014] [Indexed: 02/02/2023]
Abstract
This investigation reveals that hydroxytyrosol (HT) could compete with lysine, arginine and histidine to bind methylglyoxal (MGO) and reducing the formation of advanced glycation end products. Kinetic of the degradation of HT in presence/absence of MGO under simulated physiological conditions is monitored by HPLC coupled to a QTOF spectrometer. HT should previously be oxidized to DOPAC (3,4-dihydroxyphenylacetic acid) which reacts with MGO by electrophilic aromatic substitution of the ortho-diphenyl ring. DOPAC was detected as the major degradation product of HT under simulated physiological conditions. Ortho-hydroxyl groups are necessary to promote the nucleophilic addition of MGO by HT and related compounds. The formation of four adducts were described by mass spectrometry, but monoDOPAC-monoMGO adduct (C11H12O6) was predominant. Results suggest that HT and its degradation product DOPAC could have a relevant role in preventing the formation of advanced glycation end products and therefore potentially mitigate the diabetic complications.
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Liu L, Cao S, Yang H, Qi X. Pectin plays an important role on the kinetics properties of polyphenol oxidase from honeydew peach. Food Chem 2015; 168:14-20. [PMID: 25172677 DOI: 10.1016/j.foodchem.2014.07.064] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2014] [Revised: 06/10/2014] [Accepted: 07/09/2014] [Indexed: 11/24/2022]
Abstract
Polyphenol oxidase (PPO) was purified from peach pulp by a three-step column chromatographic procedure. The kinetics properties of the PPO fractions obtained from different purification steps were compared. All the fractions showed high affinities for (+)-catechin and (-)-epicatechin. The optimum pHs and optimum temperatures for all the fractions were the same. However, the fraction that contained pectin was more sensitive to the change of pH, and it had a lower affinity for the substrates and a higher thermostability than the fractions without pectin. In addition, the protein impurities in PPO fractions might have no effect on the properties of PPO. l-Cysteine and glutathione were effective for the inhibition of all the PPO fractions, while NaF inhibited moderately. However, the pectin could reduce the inhibition effects of those inhibitors.
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