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Lomiwes D, Günther CS, Bloor SJ, Trower TM, Ngametua N, Kanon AP, Jensen DA, Lo K, Sawyer G, Walker EG, Hedderley D, Cooney JM. Identification of Sarmentosin as a Key Bioactive from Blackcurrants ( Ribes nigrum) for Inhibiting Platelet Monoamine Oxidase in Humans. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2024; 72:16777-16789. [PMID: 39028868 PMCID: PMC11299169 DOI: 10.1021/acs.jafc.4c03802] [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: 04/30/2024] [Revised: 07/01/2024] [Accepted: 07/02/2024] [Indexed: 07/21/2024]
Abstract
Previous clinical studies indicate that monoamine oxidase-B (MAO-B) inhibition by blackcurrants must be predominantly attributed to bioactives other than anthocyanins. In this natural products discovery study, MAO-A/B inhibitory phytochemicals were isolated from blackcurrants, and a double-blind crossover study investigated the efficacy of freeze-dried whole-fruit blackcurrant powder in inhibiting MAO-B compared with blackcurrant juice in healthy adults. Platelet MAO-B inhibition was comparable between powder (89% ± 6) and juice (91% ± 4), and it was positively correlated with MAO-modulated plasma catecholamines, subjective alertness, and reduced mental fatigue, assessed using the Bond-Lader questionnaire. Sarmentosin, a nitrile glycoside, and its hydroxycinnamoyl esters were identified as novel MAO-A/B inhibitors from blackcurrant in vitro, and sarmentosin was demonstrated to inhibit platelet MAO-B activity in vivo. These findings confirm sarmentosin as the primary bioactive for MAO-A/B inhibition in blackcurrants, as well as its bioavailability and stability during freeze-drying, and suggest that consuming blackcurrant powder and juice may positively affect mood in healthy adults.
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Affiliation(s)
- Dominic Lomiwes
- The
New Zealand Institute for Plant and Food Research Limited, Palmerston North Campus, 23 Batchelar
Road, Fitzherbert, Palmerston North 4410, New Zealand
| | - Catrin S. Günther
- The
New Zealand Institute for Plant and Food Research Limited, Ruakura Campus, Bisley Road, Hamilton 3214, New Zealand
| | - Stephen J. Bloor
- Callaghan
Innovation, 69 Gracefield Road, P.O. Box 31310, Lower
Hutt 5040, New Zealand
| | - Tania M. Trower
- The
New Zealand Institute for Plant and Food Research Limited, Ruakura Campus, Bisley Road, Hamilton 3214, New Zealand
| | - Nayer Ngametua
- The
New Zealand Institute for Plant and Food Research Limited, Palmerston North Campus, 23 Batchelar
Road, Fitzherbert, Palmerston North 4410, New Zealand
| | - Alexander P. Kanon
- The
New Zealand Institute for Plant and Food Research Limited, Palmerston North Campus, 23 Batchelar
Road, Fitzherbert, Palmerston North 4410, New Zealand
| | - Dwayne A. Jensen
- The
New Zealand Institute for Plant and Food Research Limited, Ruakura Campus, Bisley Road, Hamilton 3214, New Zealand
| | - Kim Lo
- The
New Zealand Institute for Plant and Food Research Limited, Auckland Campus, 120 Mount Albert
Road, Sandringham, Auckland 1025, New Zealand
| | - Greg Sawyer
- The
New Zealand Institute for Plant and Food Research Limited, Palmerston North Campus, 23 Batchelar
Road, Fitzherbert, Palmerston North 4410, New Zealand
| | - Edward G. Walker
- The
New Zealand Institute for Plant and Food Research Limited, Auckland Campus, 120 Mount Albert
Road, Sandringham, Auckland 1025, New Zealand
| | - Duncan Hedderley
- The
New Zealand Institute for Plant and Food Research Limited, Palmerston North Campus, 23 Batchelar
Road, Fitzherbert, Palmerston North 4410, New Zealand
| | - Janine M. Cooney
- The
New Zealand Institute for Plant and Food Research Limited, Ruakura Campus, Bisley Road, Hamilton 3214, New Zealand
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Kanon AP, Giezenaar C, Roy NC, McNabb WC, Henare SJ. Acute effects of fresh versus dried Hayward green kiwifruit on sleep quality, mood, and sleep-related urinary metabolites in healthy young men with good and poor sleep quality. Front Nutr 2023; 10:1079609. [PMID: 36998905 PMCID: PMC10043399 DOI: 10.3389/fnut.2023.1079609] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 02/10/2023] [Indexed: 03/16/2023] Open
Abstract
Background and aimsDaily kiwifruit (KF) consumption has been associated with improved sleep quality, but underlying physiological mechanisms are unknown. This study examined acute effects of fresh and dried green KF, compared with a water control, on sleep quality, mood, and urinary serotonin and melatonin metabolite concentrations.Methods24 men (age: 29 ± 1 years, body mass index: 24 ± 1 kg/m2) with poor (n = 12) or good (n = 12) sleep quality participated in a randomized, single-blind crossover study. One of three treatments was consumed with a standardized evening meal; (1) the flesh of two fresh green KF, (2) dried green KF powder (including skin; equivalent to dry matter of two fresh KF) mixed with water, or (3) a water control, in their own home. Subjective and objective sleep quality, mood, waking urinary 5-hydroxyindoleacetic acid (5-HIAA), 6-sulfatoxymelatonin (aMT6s), vitamin C and B-vitamin concentrations were determined.ResultsRegardless of sleep quality group, compared to control, morning sleepiness, alertness upon awakening, and vigor were improved (p < 0.05) after dried KF consumption. Compared to control, both fresh and dried KF treatments tended (p < 0.1) toward improved esteem and total mood disturbance. Both KF treatments increased (fresh +1.56 ± 0.4 ng/g, p = 0.001; dried: +1.30 ± 0.4 ng/g, p = 0.004) urinary concentration of the serotonin metabolite 5-HIAA compared to the control (4.32 ± 0.4 ng/g). In poor sleepers, ease of awakening improved by 24% after dried KF consumption (p = 0.005) and tended to improve by 13% after fresh KF intake (p = 0.052) compared to the control. Good sleepers tended toward 9% improved ratings of getting to sleep with fresh KF (p = 0.053) compared to the control. Poor sleepers had lower amounts of some B-vitamins compared to good sleepers (p < 0.05).ConclusionConsumption of dried or fresh KF with a standard evening meal, was associated with improved aspects of sleep quality and mood, possibly mediated through changes in serotonin metabolism.Clinical trial registration[www.anzctr.org.au], identifier [ACTRN12621000046808].Graphical Abstract
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Affiliation(s)
- Alexander P. Kanon
- School of Health Sciences, College of Health, Massey University, Palmerston North, New Zealand
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North, New Zealand
- Alpha-Massey Natural Nutraceutical Research Centre, Massey University, Palmerston North, New Zealand
| | - Caroline Giezenaar
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North, New Zealand
- Food Experience and Sensory Testing Laboratory, School of Food and Advanced Technology, Massey University, Palmerston North, New Zealand
| | - Nicole C. Roy
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North, New Zealand
- Department of Human Nutrition, University of Otago, Dunedin, New Zealand
- High-Value Nutrition National Science Challenge, Auckland, New Zealand
| | - Warren C. McNabb
- Riddet Institute, Massey University, Te Ohu Rangahau Kai Facility, Palmerston North, New Zealand
- High-Value Nutrition National Science Challenge, Auckland, New Zealand
| | - Sharon J. Henare
- School of Health Sciences, College of Health, Massey University, Palmerston North, New Zealand
- *Correspondence: Sharon J. Henare,
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Parkar SG, Gopal PK. Gut Microbiota and Metabolism in Different Stages of Life and Health. Microorganisms 2022; 10:microorganisms10020474. [PMID: 35208928 PMCID: PMC8876188 DOI: 10.3390/microorganisms10020474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Revised: 02/15/2022] [Accepted: 02/17/2022] [Indexed: 01/27/2023] Open
Affiliation(s)
| | - Pramod K. Gopal
- New Zealand Institute for Plant and Food Research, Palmerston North 4442, New Zealand;
- Riddet Institute, Massey University, Palmerston North 4442, New Zealand
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Kim EHJ, Wilson A, Motoi L, Mishra SD, Monro JA, Parkar SG, Rosendale D, Stoklosinski H, Jobsis CMH, Wadamori Y, Hedderley D, Morgenstern M. Chewing differences in consumers affect the digestion and colonic fermentation outcomes: In vitro studies. Food Funct 2022; 13:9355-9371. [DOI: 10.1039/d1fo04364a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
It is important to understand variability in consumer chewing behavior for designing food products that deliver desired functionalities for target consumer segments. In this study, we selected 29 participants, representing...
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