Nutraceuticals最新文献

{"title":"Melatonin Modulates Lipid Metabolism and Reduces Cardiovascular Risk in Apolipoprotein E-Deficient Mice Fed a Western Diet","authors":"Guillermo Santos-Sánchez, A. I. Álvarez-López, Eduardo Ponce-España, A. Álvarez-Ríos, P. Lardone, A. Carrillo-Vico, Ivan Cruz-Chamorro","doi":"10.3390/nutraceuticals4020016","DOIUrl":"https://doi.org/10.3390/nutraceuticals4020016","url":null,"abstract":"Melatonin (MLT), a natural compound found in the animal and vegetable kingdom, participates in several physiological processes. MLT exerts antioxidant and anti-inflammatory activities, among others, but information about its action on lipid metabolism is still scarce. For this reason, mice deficient in apolipoprotein E (ApoE−/−) fed a Western diet (WD) were intragastrically treated with different concentrations of MLT (2 and 9 mg/kg) for 12 weeks. The lipid parameters were quantified, and, since links between cardiovascular risk and immune function and oxidative stress have been established, we also analyzed the population of leukocytes and the oxidative stress status. Although there was no change in the weight of the mice, a significant reduction in low-density lipoprotein cholesterol (LDL-C) was observed in mice treated with the higher concentration of MLT tested in this study. Additionally, an improvement in cardiovascular risk indexes was observed. A reduction in the hepatic total cholesterol (TC) and LDL-C levels was also observed in the treated mice. Finally, a decrease in leukocytes and lymphocytes in particular, as well as an increase in the antioxidant status, were shown in MLT-treated mice. In conclusion, MLT is a promising candidate that could be considered as a possible functional ingredient capable of preventing cardiovascular risk.","PeriodicalId":93800,"journal":{"name":"Nutraceuticals","volume":" 4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140995060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effect of Oral GABA on the Nervous System: Potential for Therapeutic Intervention","authors":"Shahad Almutairi, Amaya Sivadas, Andrea Kwakowsky","doi":"10.3390/nutraceuticals4020015","DOIUrl":"https://doi.org/10.3390/nutraceuticals4020015","url":null,"abstract":"Gamma-aminobutyric acid (GABA), the primary inhibitory neurotransmitter in the central nervous system (CNS), plays a pivotal role in maintaining the delicate balance between inhibitory and excitatory neurotransmission. Dysregulation of the excitatory/inhibitory balance is implicated in various neurological and psychiatric disorders, emphasizing the critical role of GABA in disease-free brain function. The review examines the intricate interplay between the gut–brain axis and CNS function. The potential impact of dietary GABA on the brain, either by traversing the blood–brain barrier (BBB) or indirectly through the gut–brain axis, is explored. While traditional beliefs questioned GABA’s ability to cross the BBB, recent research challenges this notion, proposing specific transporter systems facilitating GABA passage. Animal studies provide some evidence that small amounts of GABA can cross the BBB but there is a lack of human data to support the role of transporter-mediated GABA entry into the brain. This review also explores GABA-containing food supplements, investigating their impact on brain activity and functions. The potential benefits of GABA supplementation on pain management and sleep quality are highlighted, supported by alterations in electroencephalography (EEG) brain responses following oral GABA intake. The comprehensive overview encompasses GABA’s sources in the diet, including brown rice, soy, adzuki beans, and fermented foods. GABA’s presence in various foods and supplements, its association with gut microbiota, and its potential as a therapeutic strategy for neurological disorders are thoroughly examined. The articles were retrieved through a systematic review of the databases: OVID, SCOPUS, and PubMed (keywords “GABA”, “oral GABA“, “sleep”, “cognition”, “neurodegenerative”, “blood-brain barrier”, “gut microbiota”, “supplements” and “therapeutic”, and by searching reference sections from identified studies and review articles). This review presents the relevant literature available on the topic and discusses the mechanisms, effects, and hypotheses that suggest oral GABA benefits range from neuroprotection to blood pressure control. The literature suggests that oral intake of GABA affects the brain illustrated by changes in EEG scans and cognitive performance, with evidence showing that GABA can have beneficial effects for multiple age groups and conditions. The potential clinical and research implications of utilizing GABA supplementation are vast, spanning a spectrum of diseases ranging from neurodegeneration to blood pressure regulation. Importantly, recommendations for the use of oral GABA should consider the dosage, formulation, and duration of treatment as well as potential side effects. Effects of GABA need to be more thoroughly investigated in robust clinical trials to validate efficacy to progress the development of alternative treatments for a variety of disorders.","PeriodicalId":93800,"journal":{"name":"Nutraceuticals","volume":"17 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-05-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141009175","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Resveratrol and Neuroinflammation: Total-Scale Analysis of the Scientific Literature","authors":"M. G. dos Santos, Diele Bopsin da Luz, Fernanda Barros de Miranda, Rafael Felipe de Aguiar, A. Siebel, B. D. Arbo, M. A. Hort","doi":"10.3390/nutraceuticals4020011","DOIUrl":"https://doi.org/10.3390/nutraceuticals4020011","url":null,"abstract":"Neuroinflammation plays a crucial role in the development of various neurological diseases, including neurodegenerative disorders, leading to significant neuronal dysfunction. Current treatments involve the use of non-steroidal anti-inflammatory drugs and steroids; however, they are associated with serious adverse effects, limiting their efficacy. Exploring natural products with anti-inflammatory properties appears promising, with resveratrol, a polyphenol found in various plants, standing out for its potential benefits. Studies on resveratrol and its anti-inflammatory properties have been increasing in recent years, and analyzing the profile of this knowledge area can bring benefits to the scientific community. Therefore, this study conducted bibliometric analyses, using “resveratrol AND neuroinflammation” as search terms in the Web of Science Core Collection database. The analysis, performed with VOSviewer software version 1.6.18, encompasses 323 publications. Key terms in the studies include “resveratrol”, “neuroinflammation”, and “oxidative stress”, with China leading in the number of publications. The Federal University of Rio Grande do Sul in Brazil emerges as the institution with the highest contribution, and a phase 2 clinical study on resveratrol was the most cited. These results provide an overview of the global research landscape related to resveratrol and neuroinflammation, aiding decision making for future publications and advancing scientific understanding in this field.","PeriodicalId":93800,"journal":{"name":"Nutraceuticals","volume":" 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140214600","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Osteoprotective Effect of the Phytonutraceutical Ormona® on Ovariectomy-Induced Osteoporosis in Wistar Rats","authors":"Aline Lopes do Nascimento, Gabriel da Costa Furtado, Vinicius Maciel Vilhena, H. Carvalho, Priscila Faimann Sales, Alessandra Ohana Nery Barcellos, Kaio Coutinho de Maria, F. S. Braga, Heitor Ribeiro da Silva, Roberto Messias Bezerra, J. C. T. Carvalho","doi":"10.3390/nutraceuticals4020010","DOIUrl":"https://doi.org/10.3390/nutraceuticals4020010","url":null,"abstract":"The phytonutraceutical Ormona® is a product composed of purified oil of Bixa orellana Linné, dry extract of Myrciaria dubia McVaugh, dry extract of Trifolium pratense L., and dry extract of Euterpe oleracea Mart. obtained using Evolve® technology. This study evaluated the effects of Ormona® on Wistar rats affected by ovariectomy-induced osteoporosis. Pre-treatment was conducted for 15 days before surgery and continued for a further 45 days after the surgical procedure. The experimental design consisted of five groups (n = 5): OVW: treated with distilled water (1 mL/kg, p.o); ADS: alendronate sodium (4 mg/kg p.o); EST: conjugated estrogen (2 µg/kg, p.o); ORM: Ormona® (20 mg/kg, p.o); ORM + EST: Ormona® (20 mg/kg, p.o) + conjugated estrogen (2 µg/kg, p.o). Biochemical and hormonal parameters of bone histopathology and trabecular and femoral diaphysis size were evaluated through scanning electron microscopy (SEM) and bone calcium quantification by atomic absorption spectrophotometry. The results show that ovariectomy caused bone alterations such as loss of femoral microarchitecture, decreased bone homeostasis parameters, and changes in the lipid profile. Estrogen supplementation reduced parameters such as cholesterol, LDL, and Ca2+ concentration. However, Ormona® showed higher serum estradiol levels (p < 0.01), effects on the lipid profile, including parameters that estrogen replacement and alendronate sodium did not affect, with an increase in HDL, and positive modulation of bone metabolism, increasing osteocytes and the presence of osteoblasts. Ormona®, therefore, produced better results than the groups treated with estrogen and alendronate sodium.","PeriodicalId":93800,"journal":{"name":"Nutraceuticals","volume":" 6","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140215820","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of the In Vitro Immunomodulatory Effects of Extracts from Green-Lipped Mussels (Perna canaliculus)","authors":"Roberta Cardim Lessa, Belgheis Ebrahimi, Hui Li, Xiao Guan, Yan Li, Jun Lu","doi":"10.3390/nutraceuticals4010009","DOIUrl":"https://doi.org/10.3390/nutraceuticals4010009","url":null,"abstract":"The immune system plays a crucial role in defending the body against foreign invaders, and the balance of various polyunsaturated fatty acids, such as alpha-linolenic acid (ALA), eicosapentaenoic acid (EPA), and docosahexaenoic acid (DHA), can impact immune cell functions and overall immune responses. This study aimed to assess the effectiveness of mussel oil extracts in modulating inflammatory responses by analysing their effects on immune cell lines and cytokine expression. Four different mussel oil extracts were obtained using two extraction methods (organic solvent and supercritical CO2 extraction) from two tissue sources (fresh and commercial). These extracts were then tested at various concentrations on T lymphocyte (Jurkat) cells, monocytes, and macrophages (THP-1 and U-937). Cytokine levels were quantified using ELISA. The results showed that the solvent-extracted samples had a dose-dependent effect on tumour necrosis factor alpha (TNF-α) and interleukin-1 beta (IL-1β) cytokine secretion in THP-1 and U937 cells, with the extract from a commercial mussel powder being more efficient than the extract from fresh powder. However, supercritical CO2 samples showed elevated cytokine secretion levels despite their high omega-3 content. Furthermore, 100 ug/mL extract from fresh powder successfully reduced interleukin-2 (IL-2) secretion while maintaining cell viability after stimulation. The study demonstrated that solvent-extracted mussel oil can effectively regulate cytokine secretion, modulate immune cell activation, and alleviate inflammation. These findings offer valuable insights into using mussel oil extracts to treat inflammatory disorders and enhance immune responses.","PeriodicalId":93800,"journal":{"name":"Nutraceuticals","volume":"12 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140240834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nutritional Properties, Antioxidant Activity, and Heavy Metal Accumulation in Selected Marine Macro-Algae Species of Sri Lanka","authors":"Viraji B Warnasooriya, Sadhisha Gunawardena, P. Weththasinghe, B. Jayawardana, Mallique Qader, R. Liyanage","doi":"10.3390/nutraceuticals4010004","DOIUrl":"https://doi.org/10.3390/nutraceuticals4010004","url":null,"abstract":"In recent years, the emergence of drug resistance and sensitivity in leading diseases has heightened global interest in natural nutraceuticals as primary health supplements. However, comprehensive scientific scrutiny is essential before marketing these as supplements. In this study, we assessed the nutritional composition, antioxidant activities, and trace metal accumulation in eleven selected Sri Lankan coastal seaweed species. Gracilaria corticata had the highest (p < 0.05) ash and crude fiber content among the species. Protein content ranged from 4.87% to 23.67% (DW), with Ulva rigida displaying the highest (p < 0.05). Crude fat content ranged from 0.09% to 4.13% (DW), with Cladophora herpestica having the highest (p < 0.05) crude fat content. Sargassam cinereum, Turbinaria ornata and Sargassum crassifolium had the highest (p < 0.05) TPC content (51.32 ± 0.61–28.90 ± 2.68 mg/GAE g) and the highest (p < 0.05) radical scavenging antioxidant activity compared to other seaweeds. The study findings indicate that most of the studied metals in seaweeds exceeded the WHO-recommended levels. Aluminum was the highest (p < 0.05) accumulated metal in seaweeds compared to other metals. Toxic heavy metals, such as arsenic, cadmium and chromium, levels in all of the studied seaweeds surpassed the WHO limits. While seaweeds displayed acceptable nutritional and antioxidant properties, heavy metal presence poses a potential health risk to consumers. Products using seaweeds with accumulated heavy metals may have lower nutritional quality. Thus, this study underscores the need for comprehensive scientific investigation before developing high-quality natural food products or supplements from seaweeds.","PeriodicalId":93800,"journal":{"name":"Nutraceuticals","volume":"123 18","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-01-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139615004","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the In Vitro Protective Effects of Green-Lipped Mussel (GLM) Oil Extract against Biomarkers of Glucose Metabolism and Inflammation in Chondrocyte Cells","authors":"Roberta Cardim Lessa, Belgheis Ebrahimi, Xiao Guan, Yan Li, Jun Lu","doi":"10.3390/nutraceuticals4010001","DOIUrl":"https://doi.org/10.3390/nutraceuticals4010001","url":null,"abstract":"Chondrocyte behavior is critical in osteoarthritis (OA) progression and cartilage deterioration. Recent studies have shown that green-lipped mussel (GLM) oil extracts obtained through solvent extraction can regulate cytokine secretion in cell lines, potentially reducing inflammation and immune cell activation. This study investigates the effects of these extracts on human chondrocyte cell lines to understand their impact on osteoarthritis development. Chondrocyte cultures exposed to osteoarthritis-related inflammatory factors were treated with various concentrations of GLM oil. The results revealed that mussel oils, particularly a commercial mussel powder extract (SOLV.COM), enhance glucose uptake and protect chondrocyte cells. SOLV.COM effectively manages the release of inflammatory markers like interleukin-6 (IL-6) and matrix metalloproteinases-3 (MMP-3), showing increased deoxyglucose uptake. This study highlights the significant influence of extract choice on managing interleukin-6 (IL-6) secretion and cellular activation pathways, demonstrating the potential of SOLV.COM in managing osteoarthritis by controlling reactive oxygen production, regulating glucose metabolism, and inflammatory markers.","PeriodicalId":93800,"journal":{"name":"Nutraceuticals","volume":" 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138962834","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The Effects of Geranylgeraniol on Blood Safety and Sex Hormone Profiles in Healthy Adults: A Dose-Escalation, Randomized, Placebo-Controlled Trial","authors":"Raad Gheith, Matthew H Sharp, Matthew W Stefan, Charlie R. Ottinger, Ryan Lowery, Jacob Wilson","doi":"10.3390/nutraceuticals3040043","DOIUrl":"https://doi.org/10.3390/nutraceuticals3040043","url":null,"abstract":"Geranylgeraniol (GG), an ingredient extracted from the South American annatto plant, has been shown to benefit bone and muscle health, is crucial in the biosynthesis of menaquinone-4 and coenzyme Q10, and has pain and inflammation reduction activities. However, no known studies to date have demonstrated the safety and impact of GG supplementation in humans. This 8-week, randomized, placebo-controlled, dose-escalated trial was conducted to determine the effect of GG on blood safety and hormone markers in healthy adults. Sixty-six males and females between 30 and 49 years of age were supplemented with either GG or a placebo (PLA) for 8 weeks, with dose escalation from 150 mg to 300 mg occurring after 4 weeks in the treatment group. Changes in complete blood count and comprehensive metabolic panels were analyzed for whole study groups (males and females) while changes in sex hormone panels were analyzed for males and females independently. There were no significant changes in complete blood count, comprehensive metabolic panel, progesterone, estradiol, sex–hormone binding globulin, or dihydrotestosterone (p > 0.05). An exploratory analysis of testosterone levels in a subgroup of males with baseline (Pre) total testosterone < 700 ng/dL (GG = 15; PLA = 13) demonstrated a significant increase (p < 0.05) from Pre to Week 8 in total-, free-, and bioavailable testosterone (+7.5%, +15.0%, and +14.8%, respectively). This study demonstrates that GG does not significantly change the composition of blood chemistry, hematology, or sex hormone profiles in adult males or females. Given the effects observed in the exploratory analysis in a subgroup of males, GG supplementation may be beneficial for testosterone enhancement in male populations subject to low testosterone (i.e., aging males and those with late-onset hypogonadism), but further research is needed.","PeriodicalId":93800,"journal":{"name":"Nutraceuticals","volume":"30 16","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139009075","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Chemical Composition, Antibacterial and Inhibitory Activity of the Efflux Pump of Essential Oils from Croton piauhiensis Müll.","authors":"B. G. Cruz, T. D. de Freitas, M. Costa, A. D. da Silva, H. Coutinho, S. D. de Morais, E. S. Marinho, Alexandre Magno Rodrigues Teixeira, Hélcio Silva dos Santos","doi":"10.3390/nutraceuticals3040042","DOIUrl":"https://doi.org/10.3390/nutraceuticals3040042","url":null,"abstract":"As the spread of bacterial resistance to clinically available antibiotics has become a global public health problem, the scientific community has intensified its studies in the search for natural compounds and their derivatives to combat bacterial resistance. In this work, a circadian study of the essential oil extracted from the leaves of Croton piauhiensis (EOCP) was carried out. We also sought to evaluate its antibacterial activity, modulatory potential and if it acts as a possible inhibitor of the efflux pump by determining the minimum inhibitory concentration (MIC) and the association of the oil in subinhibitory concentrations with the antibiotic ciprofloxacin and with ethidium bromide (EtBr) against the strain of Staphylococcus aureus K2068 strain. The assays used to obtain the MIC of the EOCP were performed by broth microdilution, while the efflux pump inhibitory test was performed by the MIC modification method. According to the results, the circadian study showed differences in the chemical composition and percentage of oils collected at different times of the day, which can be attributed to environmental conditions. The main components of the EOCP were β-caryophyllene (6 h—21.23%; 12 h—22.86% and 18 h—16.95%), followed by D-Limonene (6 h—13.27% and 18 h—15.95%) and γ-Elemene (12 h)—12.61%). The EOCP collected at 12 h had a better profile in reducing MIC, presenting antibacterial activity for Staphylococcus aureus and Escherichia coli. In the efflux pump test, it was observed that the oil was able to potentiate the action of ethidium bromide against the S. aureus K2068 strain, which can contribute to the prevention or treatment of infectious diseases caused by multidrug-resistant (MDR) strains.","PeriodicalId":93800,"journal":{"name":"Nutraceuticals","volume":"104 9","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138590599","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of Maceration Solvent on Chemical Composition of Gemmotherapy Macerates—A Case Study on Olea europaea Young Shoots","authors":"Dimitri Bréard, Hélène Esselin, Lucie Bugeia, S. Boisard, D. Guilet, Pascal Richomme, A. Le Ray, Christophe Ripoll","doi":"10.3390/nutraceuticals3040041","DOIUrl":"https://doi.org/10.3390/nutraceuticals3040041","url":null,"abstract":"Gemmotherapy, a natural therapy based on bud macerates, has recently gained importance in the field of food supplements. However, two coexisting extraction methods employ a glycerin-based solvent, either in a binary or ternary solvent mixture. The absence of an official method for bud preparation leads to non-standardized bud macerates. Given this context, this study aimed to (i) assess the influence of solvent composition on the chemical profile of olive young shoot macerates obtained using glycerin-based solvents or using different solvent extractions and (ii) to compare the two coexisting traditional bud extraction methods described by Dr Pol Henry and by the European Pharmacopoeia. A comprehensive phytochemical analysis of all macerates was conducted using HPLC-DAD-ELSD-MS2, identifying 50 metabolites divided into 7 classes through dereplication. The extracts obtained with the solvent described by the European Pharmacopoeia (ethanol/glycerin) and by Dr Pol Henry (water/ethanol/glycerin) appeared to be the most diversified in terms of metabolite distribution and possessed higher rates of secondary metabolites. These observations reinforce the interest in a glycerin-based solvent mixture for bud extraction in gemmotherapy. In addition, the difference in composition between the two traditional solvents was highlighted. Indeed, iridoids were predominant in both macerates, representing about 50% of the chemical composition, but differences were observed from one macerate to another regarding the proportions of the other chemical classes. This emphasizes the necessity for standardized gemmotherapy macerates.","PeriodicalId":93800,"journal":{"name":"Nutraceuticals","volume":"24 3‐4","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138626276","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}