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Edelman C, Rouse C, Yang Z, Cook M, Daggy J, Shanks A. A Crossover Trial Evaluating Coconut Oil as an Alternative to Commercial Ultrasound Gel in Obstetrical Ultrasounds. Am J Perinatol 2024. [PMID: 38531377 DOI: 10.1055/s-0044-1782687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/28/2024]
Abstract
OBJECTIVE Our objective was to evaluate the quality of obstetrical ultrasound images obtained with coconut oil compared with commercial ultrasound gel and to assess patient acceptability. STUDY DESIGN This was a randomized two-period crossover study in which 40 pregnant patients had standard biometry images obtained with both coconut oil and commercial ultrasound gel during their growth or anatomy ultrasound. All images were then rated by two blinded maternal-fetal medicine physicians on quality, resolution, and detail using a 0 to 100 scale. Contrasts obtained from linear mixed models were used to estimate the differences in image parameters between the agents. Participant experience was evaluated with an acceptability survey which included five items measured on a five-point Likert scale. RESULTS Image quality, as rated by physicians, was found to be equivalent between commercial ultrasound gel and coconut oil. Additionally, there was not a statistically significant difference in image resolution or detail between the two coupling agents. The overall patient experience was significantly lower for commercial ultrasound gel when compared with coconut oil (mean difference = - 5.48, 95% confidence interval = [-6.89, -4.06]). CONCLUSION Ultrasound images collected with coconut oil as the coupling agent are equivalent in quality to those collected using commercial ultrasound gel. Patients also preferred the use of coconut oil during their ultrasound, making its use a possible way to improve the patient ultrasound experience. Coconut oil has the potential as an alternative coupling agent that could significantly increase access to ultrasound use in resource-limited settings. KEY POINTS · Coconut oil produces quality images during obstetrical ultrasounds.. · Patients prefer the use of coconut oil to standard ultrasound gel during obstetrical ultrasounds.. · Coconut oil is a coupling agent that could increase ultrasound use in resource-limited settings..
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Affiliation(s)
- Claire Edelman
- Department of Obstetrics and Gynecology, Indiana University School of Medicine, Indianapolis, Indiana
| | - Caroline Rouse
- Department of Maternal-Fetal Medicine, Indiana University School of Medicine, Indianapolis, Indiana
| | - Ziyi Yang
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, Indiana
| | - Myanna Cook
- Indiana University School of Medicine, Indianapolis, Indiana
| | - Joanne Daggy
- Department of Biostatistics and Health Data Science, Indiana University School of Medicine, Indianapolis, Indiana
| | - Anthony Shanks
- Department of Maternal-Fetal Medicine, Indiana University School of Medicine, Indianapolis, Indiana
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Athparia M, Bora N, Deka A, Sohtun P, Padhi P, Bhuyan N, Bordoloi NJ, Gogoi L, Kataki R. Non-fuel applications of bio-oil for sustainability in management of bioresources. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023:10.1007/s11356-023-31449-w. [PMID: 38155309 DOI: 10.1007/s11356-023-31449-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2022] [Accepted: 12/05/2023] [Indexed: 12/30/2023]
Abstract
Biomass valorization by thermochemical conversion method is a promising and intriguing pathway due to the flexibility of utilizing a diverse group of biomass and biowastes, specific product delivery mechanism through manipulation of process parameters, and wide applicability of the products. Pyrolysis has been viewed as an effective valorization technique to transform biowastes into pyrolytic oil, solid char, and syngas. Syngas is generally fed to the pyrolysis process to generate heat necessary for the pyrolysis process to sustain. Pyrolysis may also be a subsidiary component in a biorefinery system where it draws feedstocks from refinery process residues or the side streams of the refinery operation. In recent times, pyrolysis products have been under intense research for their usability and diverse applicability. Bio-oil's rich chemical makeup has promising potential to be used as an advanced biofuel and is considered as a storehouse of diverse chemical species ranging from green solvents to bioactive chemicals. The current review provides a state of knowledge on non-fuel uses of bio-oil and concludes that the pyrolysis process and products could be a part of the future bioeconomy if designed in a manner that biowastes are transformed into value-added products which replace products of petroleum origin.
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Affiliation(s)
- Mondita Athparia
- Biofuel Laboratory, Department of Energy, Tezpur University, Tezpur, Assam, 784028, India
| | - Neelam Bora
- Biofuel Laboratory, Department of Energy, Tezpur University, Tezpur, Assam, 784028, India
| | - Anuron Deka
- Biofuel Laboratory, Department of Energy, Tezpur University, Tezpur, Assam, 784028, India
| | - Phibarisha Sohtun
- Biofuel Laboratory, Department of Energy, Tezpur University, Tezpur, Assam, 784028, India
| | - Priyanka Padhi
- Biofuel Laboratory, Department of Energy, Tezpur University, Tezpur, Assam, 784028, India
| | - Nilutpal Bhuyan
- Biofuel Laboratory, Department of Energy, Tezpur University, Tezpur, Assam, 784028, India
- Department of Chemistry, Devi Charan Baruah Girls' College, Jorhat, 785001, India
| | - Neon Jyoti Bordoloi
- Biofuel Laboratory, Department of Energy, Tezpur University, Tezpur, Assam, 784028, India
- Department of Chemistry, Assam Down Town University, Guwahati, 781026, Assam, India
| | - Lina Gogoi
- Biofuel Laboratory, Department of Energy, Tezpur University, Tezpur, Assam, 784028, India
- Department of Environmental Science, Tezpur University, Tezpur, Assam, 784028, India
| | - Rupam Kataki
- Biofuel Laboratory, Department of Energy, Tezpur University, Tezpur, Assam, 784028, India.
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Rizwana H, Aljowaie RM, Al Otibi F, Alwahibi MS, Alharbi SA, Al Asmari SA, Aldosari NS, Aldehaish HA. Antimicrobial and antioxidant potential of the silver nanoparticles synthesized using aqueous extracts of coconut meat (Cocos nucifera L). Sci Rep 2023; 13:16270. [PMID: 37758773 PMCID: PMC10533512 DOI: 10.1038/s41598-023-43384-4] [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: 05/30/2023] [Accepted: 09/22/2023] [Indexed: 09/29/2023] Open
Abstract
Human pathogenic fungi and bacteria pose a huge threat to human life, accounting for high rates of mortality every year. Unfortunately, the past few years have seen an upsurge in multidrug resistance pathogens. Consequently, finding an effective alternative antimicrobial agent is of utmost importance. Hence, this study aimed to phytofabricate silver nanoparticles (AgNPs) using aqueous extracts of the solid endosperm of Cocos nucifera L, also known as coconut meat (Cm). Green synthesis is a facile, cost-effective and eco-friendly methods which has several benefits over other physical and chemical methods. The synthesized nanoparticles were characterized by UV-Vis spectroscopy, Fourier transform infrared spectroscopy (FTIR), X-ray diffraction analysis (XRD), field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and dynamic light scattering (DLS). The Cm-AgNPs showed a UV-Vis peak at 435 nm and were crystalline and quasi-spherical, with an average size of 15 nm. The FTIR spectrum displayed functional groups of phenols, alkaloids, sugars, amines, and carbonyl compounds, which are vital in the reduction and capping of NPs. The antibacterial and anticandidal efficacy of the Cm-AgNPs was assessed by the agar-well diffusion method and expressed as a zone of inhibition (ZOI). Amongst all the test isolates, Staphylococcus epidermidis, Candida auris, and methicillin-resistant Staphylococcus epidermidis were more susceptible to the NPs with a ZOI of 26.33 ± 0.57 mm, 19.33 ± 0.57 mm, and 18 ± 0.76 mm. The MIC and MFC values for Candida spp. were higher than the bacterial test isolates. Scanning electron microscopic studies of all the test isolates at their MIC concentrations showed drastically altered cell morphology, indicating that the NPs could successfully cross the cell barrier and damage the cell integrity, causing cell death. This study reports the efficacy of Cm-AgNPs against several Candida and bacterial strains, which had not been reported in earlier studies. Furthermore, the synthesized AgNPs exhibited significant antioxidant activity. Thus, the findings of this study strongly imply that the Cm-AgNPs can serve as promising candidates for therapeutic applications, especially against multidrug-resistant isolates of Candida and bacteria. However, further investigation is needed to understand the mode of action and biosafety.
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Affiliation(s)
- Humaira Rizwana
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, 11495, Riyadh, Saudi Arabia.
| | - Reem M Aljowaie
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, 11495, Riyadh, Saudi Arabia
| | - Fatimah Al Otibi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, 11495, Riyadh, Saudi Arabia
| | - Mona S Alwahibi
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, 11495, Riyadh, Saudi Arabia
| | - Saleh Ali Alharbi
- Department of Microbiology, Ministry of Health, Regional Laboratory, 14969, Riyadh, Saudi Arabia
| | - Saeed Ali Al Asmari
- Department of Microbiology, Ministry of Health, Regional Laboratory, 14969, Riyadh, Saudi Arabia
| | - Noura S Aldosari
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, 11495, Riyadh, Saudi Arabia
| | - Horiah A Aldehaish
- Department of Botany and Microbiology, College of Science, King Saud University, P.O. Box 22452, 11495, Riyadh, Saudi Arabia
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Sarkar T, Mukherjee M, Roy S, Chakraborty R. Palm sap sugar an unconventional source of sugar exploration for bioactive compounds and its role on functional food development. Heliyon 2023; 9:e14788. [PMID: 37035349 PMCID: PMC10073893 DOI: 10.1016/j.heliyon.2023.e14788] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 03/10/2023] [Accepted: 03/16/2023] [Indexed: 03/28/2023] Open
Abstract
Palm sap sugar is a sweetener which is made from the sap or nectar collected from different varieties/species of palm trees. It has huge scope as an alternative sweetener in Indian market. It is a natural alternative to unhealthy cane sugar and is more beneficial for farmers as well. Some of its characteristic features are low GI value and its macro (Glucose: 0.49-86.90 g/100 ml, Fructose: 0.26-1.61, Sucrose: 5.30-27.00 g/100 ml) and micro (K: 65.28-1326.0, Na: 2.85-117.5, Mg: 0.54-31.00, Ca: 0.24-79.00 mg/100 ml) nutritional content. Palm sugar also has impact on colour, aroma and taste profile of the final product. The taste, sensory profile and nutritional attributes of palm sugar vary on the basis of its species, region of growth and climatic conditions. At present, traditional processing of palm sap leads to lower yield and higher expenses. There is huge potential in the field of development in processing techniques (Traditional processing, spray drying, membrane technology, and vacuum drying) to optimize the production of palm sugar. Palm sugar and other products from different parts of palm can be used to make a variety of other value-added products like toffees, chocolates, cola, toddy wine, candy, and palm vinegar etc. The purpose of this review paper is to summarise the composition of palm sap, distinctive qualities of the extracted sap, various production procedures, nutritional and physico-chemical properties of palm sugar, and the development of functional foods using palm sugar.
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Affiliation(s)
- Tanmay Sarkar
- Department of Food Processing Technology, Malda Polytechnic, West Bengal State Council of Technical Education, West Bengal- 732102, India
- Corresponding author.
| | - Megha Mukherjee
- Department of Food Processing and Biochemical Engineering, Jadavpur University, Kolkata, India
| | - Sarita Roy
- Department of Food Processing and Biochemical Engineering, Jadavpur University, Kolkata, India
| | - Runu Chakraborty
- Department of Food Processing and Biochemical Engineering, Jadavpur University, Kolkata, India
- Corresponding author.
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Wisuitiprot V, Ingkaninan K, Wisuitiprot W, Srivilai J, Chakkavittumrong P, Waranuch N. Effects of some medicinal plant extracts on dermal papilla cells. J Cosmet Dermatol 2022; 21:6109-6117. [PMID: 35675125 DOI: 10.1111/jocd.15148] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Revised: 05/27/2022] [Accepted: 06/04/2022] [Indexed: 12/27/2022]
Abstract
INTRODUCTION Miniaturization of the hair follicles is evident on the balding scalp. Approved medications, topical minoxidil, and oral finasteride for the treatment of alopecia sometimes come with undesirable adverse effects. The study was to examine the bioactivity of medicinal plants for finding the promising source of anti-hair loss application. METHODS Ten ethanolic extracts were prepared from Acacia concina (Willd.) DC., Acanthus ebracteatus Vahl, Bridelia ovata Decne, Cleome viscosa L., Cocos nucifera L., Hibiscus subdariffla L., Oryza sativa L., Terminalia chebula Retz., Tinospora crispa (L.) Hook. f. & Thomson and cytotoxic tested on dermal papilla cells using MTT assay. The effect of the extracts on cell cycle was also determined using flow cytometry technique. Anti-inflammatory activity was examined by determining IL-1β inhibition in RAW 257.4 cells. In vitro study of androgenic and 5α-reductase inhibitory activities were also determined using MTT assay and enzymatic reaction couple with liquid chromatography-mass spectrometry (LC-MS), respectively. RESULTS Our results revealed that only A. ebracteatus promoted dermal papilla cell proliferation and the S and G2/M phases in cell cycle. A. ebracteatus also showed inhibitory activity against 5α-reductase and testosterone in reducing cell viability of the dermal papilla. Moreover, A. ebracteatus extract strongly inhibited LPS-stimulating IL-1β production in RAW 264.7 cells in a dose-dependent manner. CONCLUSION Our finding indicated that the ethanolic extract of A. ebracteatus is a promising candidate for anti-hair loss treatment.
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Affiliation(s)
- Vanuchawan Wisuitiprot
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok, Thailand.,Cosmetics and Natural Products Research Center, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok, Thailand
| | - Kornkanok Ingkaninan
- Department of Pharmaceutical Chemistry and Pharmacognosy, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok, Thailand
| | - Wudtichai Wisuitiprot
- Sirindhorn College of Public Health Phitsanulok, Faculty of Public Health and Allied Health Sciences, Praboromarajchanok Institute, Phitsanulok, Thailand
| | - Jukkarin Srivilai
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences, University of Phayao, Phayao, Thailand
| | - Panlop Chakkavittumrong
- Department of Internal Medicine, Faculty of Medicine, Thammasat University, Bangkok, Thailand
| | - Neti Waranuch
- Department of Pharmaceutical Technology, Faculty of Pharmaceutical Sciences and Center of Excellence for Innovation in Chemistry, Naresuan University, Phitsanulok, Thailand.,Cosmetics and Natural Products Research Center, Faculty of Pharmaceutical Sciences, Naresuan University, Phitsanulok, Thailand
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Xu L, Zhong XL, Xi ZC, Li Y, Xu HX. Medicinal plants and natural compounds against acyclovir-resistant HSV infections. Front Microbiol 2022; 13:1025605. [PMID: 36299732 PMCID: PMC9589345 DOI: 10.3389/fmicb.2022.1025605] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2022] [Accepted: 09/14/2022] [Indexed: 12/02/2022] Open
Abstract
Herpes simplex virus (HSV), an alphaherpesvirus, is highly prevalent in the human population and is known to cause oral and genital herpes and various complications. Represented by acyclovir (ACV), nucleoside analogs have been the main clinical treatment against HSV infection thus far. However, due to prolonged and excessive use, HSV has developed ACV-resistant strains. Therefore, effective treatment against ACV-resistant HSV strains is urgently needed. In this review, we summarized the plant extracts and natural compounds that inhibited ACV-resistant HSV infection and their mechanism of action.
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Affiliation(s)
- Lin Xu
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, China
| | - Xuan-Lei Zhong
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, China
| | - Zhi-Chao Xi
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, China
| | - Yang Li
- School of Pharmacy, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Engineering Research Center of Shanghai Colleges for TCM New Drug Discovery, Shanghai, China
- *Correspondence: Yang Li,
| | - Hong-Xi Xu
- Shuguang Hospital, Shanghai University of Traditional Chinese Medicine, Shanghai, China
- Hong-Xi Xu,
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Antibacterial activity of flavonoids and triterpenoids isolated from the stem bark and sap of Staudtia Kamerunensis Warb. (Myristicaceae). ARAB J CHEM 2022. [DOI: 10.1016/j.arabjc.2022.104150] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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The Role of Pyrazolopyridine Derivatives on Different Steps of Herpes Simplex Virus Type-1 In Vitro Replicative Cycle. Int J Mol Sci 2022; 23:ijms23158135. [PMID: 35897709 PMCID: PMC9332599 DOI: 10.3390/ijms23158135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 07/12/2022] [Accepted: 07/13/2022] [Indexed: 12/07/2022] Open
Abstract
Herpes simplex virus type-1 (HSV-1) infection causes several disorders, and acyclovir is used as a reference compound. However, resistant strains are commonly observed. Herein, we investigate the effects of N-heterocyclic compounds (pyrazolopyridine derivatives), named ARA-04, ARA-05, and AM-57, on HSV-1 in vitro replication. We show that the 50% effective concentration (EC50) values of the compounds ARA-04, ARA-05, and AM-57 were 1.00 ± 0.10, 1.00 ± 0.05, and 0.70 ± 0.10 µM, respectively. These compounds presented high 50% cytotoxic concentration (CC50) values, which resulted in a selective index (SI) of 1000, 1000, and 857.1 for ARA-04, ARA-05, and AM-57, respectively. To gain insight into which step of the HSV-1 replication cycle these molecules would impair, we performed adsorption and penetration inhibition assays and time-of-addition experiments. Our results indicated that ARA-04 and ARA-05 affected viral adsorption, while AM-57 interfered with the virus replication during its α- and γ-phases and decreased ICP27 content during initial and late events of HSV-1 replication. In addition, we also observed that AM-57 caused a strong decrease in viral gD content, which was reinforced by in silico calculations that suggested AM-57 interacts preferentially with the viral complex between a general transcription factor and virion protein (TFIIBc-VP16). In contrast, ARA-04 and ARA-05 interact preferentially in the proteins responsible for the viral adsorption process (nectin-1 and glycoprotein). Thus, our results suggest that the 1H-pyrazolo[3,4-b]pyridine derivatives inhibit the HSV-1 replicative cycle with a novel mechanism of action, and its scaffold can be used as a template for the synthesis of promising new molecules with antiviral effects, including to reinforce the presented data herein for a limited number of molecules.
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Vargas-Torrico MF, von Borries-Medrano E, Valle-Guadarrama S, Aguilar-Méndez MA. Development of gelatin-carboxymethylcellulose coatings incorporated with avocado epicarp and coconut endocarp extracts to control fungal growth in strawberries for shelf-life extension. CYTA - JOURNAL OF FOOD 2022. [DOI: 10.1080/19476337.2021.2024607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Affiliation(s)
- Maria Fernanda Vargas-Torrico
- Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Unidad Legaria, Ciudad de México, México
| | - Erich von Borries-Medrano
- Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Unidad Legaria, Ciudad de México, México
| | | | - Miguel A. Aguilar-Méndez
- Instituto Politécnico Nacional, Centro de Investigación en Ciencia Aplicada y Tecnología Avanzada, Unidad Legaria, Ciudad de México, México
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Arghya A, Mysore V. Hair oils: Indigenous knowledge revisited. Int J Trichology 2022; 14:84-90. [PMID: 35755964 PMCID: PMC9231528 DOI: 10.4103/ijt.ijt_189_20] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2020] [Revised: 09/05/2021] [Accepted: 10/19/2021] [Indexed: 11/04/2022] Open
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Photocatalytic Degradation of Methylene Blue and Metanil Yellow Dyes Using Green Synthesized Zinc Oxide (ZnO) Nanocrystals. CRYSTALS 2021. [DOI: 10.3390/cryst12010022] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
In this work, ZnO nanocrystals (NCs) have been effectively synthesized by a simple, efficient and cost-effective method using coconut husk extract as a novel fuel. The synthesized NCs are characterized by UV-Vis, XRD, FT-IR, SEM, EDX, Raman and PL studies. The obtained ZnO were found to be UV-active with a bandgap of 2.93 eV. The X-ray diffraction pattern confirms the crystallinity of the ZnO with hexagonally structured ZnO with a crystallite size of 48 nm, while the SEM analysis reveals the hexagonal bipyramid morphology. Photocatalytic activities of the synthesized ZnO NCs are used to degrade methylene blue and metanil yellow dyes.
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Priyadarshini MB, Balange AK, Xavier KAM, Reddy R, Nayak BB, Sanath Kumar H. The Effect of Lyophilized Coconut Mesocarp — Aqueous and Ethanol Phenolic Extracts on the Gel Quality of Tilapia Surimi. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2021. [DOI: 10.1080/10498850.2021.1989100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Affiliation(s)
- M. Bhargavi Priyadarshini
- Department of Post-Harvest Technology, ICAR-Central Institute of Fisheries Education, Mumbai, India
- Department of Fish Processing and Technology, Central Agricultural University (Imphal), West- Tripura, India
| | - Amjad Khansaheb Balange
- Department of Post-Harvest Technology, ICAR-Central Institute of Fisheries Education, Mumbai, India
| | - K. A. Martin Xavier
- Department of Post-Harvest Technology, ICAR-Central Institute of Fisheries Education, Mumbai, India
| | - Ramakrishna Reddy
- Department of Post-Harvest Technology, ICAR-Central Institute of Fisheries Education, Mumbai, India
| | - Binaya Bhusan Nayak
- Department of Post-Harvest Technology, ICAR-Central Institute of Fisheries Education, Mumbai, India
| | - H. Sanath Kumar
- Department of Post-Harvest Technology, ICAR-Central Institute of Fisheries Education, Mumbai, India
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Li N, Jiang H, Yang J, Wang C, Wu L, Hao Y, Liu Y. Characterization of phenolic compounds and anti-acetylcholinase activity of coconut shells. FOOD BIOSCI 2021. [DOI: 10.1016/j.fbio.2021.101204] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Leow SS, Fairus S, Sambanthamurthi R. Water-soluble palm fruit extract: composition, biological properties, and molecular mechanisms for health and non-health applications. Crit Rev Food Sci Nutr 2021; 62:9076-9092. [PMID: 34156318 DOI: 10.1080/10408398.2021.1939648] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
The oil palm (Elaeis guineensis) fruit is a source of vegetable oil and various phytonutrients. Phytochemical compounds present in palm oil include tocotrienols, carotenoids, phytosterols, squalene, coenzyme Q10, and phospholipids. Being a fruit, the oil palm is also a rich source of water-soluble phytonutrients, including phenolic compounds. Extraction of phytonutrients from the oil palm vegetation liquor of palm oil milling results in a phenolic acid-rich fraction termed Water-Soluble Palm Fruit Extract (WSPFE). Pre-clinical in vitro, ex vivo, and in vivo studies carried out using various biological models have shown that WSPFE has beneficial bioactive properties, while clinical studies in healthy volunteers showed that it is safe for human consumption and confers antioxidant and anti-inflammatory effects. The composition, biological properties, and relevant molecular mechanisms of WSPFE discovered thus far are discussed in the present review, with a view to offer future research perspectives on WSPFE for health and non-health applications.
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Affiliation(s)
- Soon-Sen Leow
- Malaysian Palm Oil Board, Kajang, Selangor, Malaysia
| | - Syed Fairus
- Malaysian Palm Oil Board, Kajang, Selangor, Malaysia
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Attah AF, Fagbemi AA, Olubiyi O, Dada-Adegbola H, Oluwadotun A, Elujoba A, Babalola CP. Therapeutic Potentials of Antiviral Plants Used in Traditional African Medicine With COVID-19 in Focus: A Nigerian Perspective. Front Pharmacol 2021; 12:596855. [PMID: 33981214 PMCID: PMC8108136 DOI: 10.3389/fphar.2021.596855] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2020] [Accepted: 01/20/2021] [Indexed: 12/12/2022] Open
Abstract
The coronavirus disease 2019 (COVID-19) pandemic is caused by an infectious novel strain of coronavirus known as severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) which was earlier referred to as 2019-nCoV. The respiratory disease is the most consequential global public health crisis of the 21st century whose level of negative impact increasingly experienced globally has not been recorded since World War II. Up till now, there has been no specific globally authorized antiviral drug, vaccines, supplement or herbal remedy available for the treatment of this lethal disease except preventive measures, supportive care and non-specific treatment options adopted in different countries via divergent approaches to halt the pandemic. However, many of these interventions have been documented to show some level of success particularly the Traditional Chinese Medicine while there is paucity of well reported studies on the impact of the widely embraced Traditional African Medicines (TAM) adopted so far for the prevention, management and treatment of COVID-19. We carried out a detailed review of publicly available data, information and claims on the potentials of indigenous plants used in Sub-Saharan Africa as antiviral remedies with potentials for the prevention and management of COVID-19. In this review, we have provided a holistic report on evidence-based antiviral and promising anti-SARS-CoV-2 properties of African medicinal plants based on in silico evidence, in vitro assays and in vivo experiments alongside the available data on their mechanistic pharmacology. In addition, we have unveiled knowledge gaps, provided an update on the effort of African Scientific community toward demystifying the dreadful SARS-CoV-2 micro-enemy of man and have documented popular anti-COVID-19 herbal claims emanating from the continent for the management of COVID-19 while the risk potentials of herb-drug interaction of antiviral phytomedicines when used in combination with orthodox drugs have also been highlighted. This review exercise may lend enough credence to the potential value of African medicinal plants as possible leads in anti-COVID-19 drug discovery through research and development.
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Affiliation(s)
- Alfred Francis Attah
- Department of Pharmacognosy and Drug Development, Faculty of Pharmaceutical Sciences, University of Ilorin, Ilorin, Nigeria
| | - Adeshola Adebayo Fagbemi
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ibadan, Ibadan, Nigeria
| | - Olujide Olubiyi
- Department of Pharmaceutical Chemistry, Obafemi Awolowo University, Ile-Ife, Nigeria
- Institute of Biological Information Processing, Structural Biochemistry (IBI-7), Forschungszentrum Jülich, Jülich, Germany
| | - Hannah Dada-Adegbola
- Department of Medical Microbiology and Parasitology, College of Medicine, University of Ibadan, Ibadan, Nigeria
| | | | - Anthony Elujoba
- Department of Pharmacognosy, Faculty of Pharmacy, Obafemi Awolowo University, Ile-Ife, Nigeria
| | - Chinedum Peace Babalola
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Ibadan, Ibadan, Nigeria
- Centre for Drug Discovery, Development and Production, University of Ibadan, Ibadan, Nigeria
- College of Basic Medical Sciences, Chrisland University, Abeokuta, Nigeria
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Fenghour H, Bouabida H, Dris D, Houhamdi M. Antibacterial effect of essential oils of two plants Eucalyptus camaldulensis and Artemisia herba alba on some bacterial strains. BIOSYSTEMS DIVERSITY 2021. [DOI: 10.15421/012110] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Essential oils are secondary plant metabolites and have many therapeutic properties. The aim of our study is to determine the antibacterial effect of the essential oils of two plants cultivated in a semi-arid region located in the Northeast of Algeria (Tebessa), Eucalyptus camaldulensis (Myrtaceae) and Artemisia herba alba (Asteraceae). The yield of essential oils of the two plants were 1.45 ± 0.026 and 1.21 ± 0.061 g/100 g of the dry matter of the aerial part respectively. The test of the antibacterial effect is based on the diffusion method on solid medium (sensitivity), this method allows us to determine the susceptibility or resistance of an organism vis-à-vis the sample studied. Our study reveals that E. camaldulensis essential oil had very strong activity on all bacterial strains tested, except on Pseudomonas aeruginosa and Enterococcus faecalis for which there was no inhibitory effect. However, A. herba alba essential oil had very strong activity on all bacterial strains tested except on Pseudomonas aeruginosa. The MIC of Artemisia essential oil ranged between 0.08 and 1.57 µL/mL, with the lowest activity for S. aureus and P. mirabilis (1.57 µL/mL) and the highest activity was observed against E. feacalis, E. coli, and K. pneumonia (0.09 µL/mL). The MIC of the second plant EO ranged between 0.08 and 0.36 µL/mL, with the lowest activity for P. mirabilis (0.36 µL/mL) and the highest one was observed against S. saprophyticus and E. coli (0.08 µL/mL). Statistical analysis shows that the two plants have the same efficacy against S. saprophyticus while E. faecalis, K. pneumoniae and P. mirabilis species are affected more by the essential oil of A. herba alba. While, E. camaldulensis has a higher efficiency than that of A. herba alba on the species: S. aureus and E. coli. Therefore, the essential oils of E. camaldulensis and A. herba alba suggests avenues for further non clinical and clinical studies.
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Mannarmannan M, Biswas K. Phytochemical‐Assisted Synthesis of Cuprous Oxide Nanoparticles and Their Antimicrobial Studies. ChemistrySelect 2021. [DOI: 10.1002/slct.202004471] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
| | - Krishnendu Biswas
- Chemistry Division School of Advanced Sciences, VIT- Chennai 600 127 Tamilnadu India
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Guedes D, Martins GR, Jaramillo LYA, Simas Bernardes Dias D, da Silva AJR, Lutterbach MTS, Reznik LY, Sérvulo EFC, Alviano CS, Alviano DS. Proanthocyanidins with Corrosion Inhibition Activity for AISI 1020 Carbon Steel under Neutral pH Conditions of Coconut ( Cocos nucifera L.) Husk Fibers. ACS OMEGA 2021; 6:6893-6901. [PMID: 33748603 PMCID: PMC7970558 DOI: 10.1021/acsomega.0c06104] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2020] [Accepted: 02/18/2021] [Indexed: 05/24/2023]
Abstract
Cocos nucifera L. is a palm tree (Arecaceae) with a high economic value. The coconut husk fibers are nonedible, thick, and abrasion-resistant and correspond up to 85% of biomass discarded as solid waste residue. Therefore, the husk fibers are an underexploited byproduct with a high content of extractives of unreported nature. Two varieties of C. nucifera L. husk extracts were investigated to uncover bioactive metabolites and their possible application as a green corrosion inhibitor for carbon steel AISI 1020 under neutral pH conditions. The chemical analysis indicated 3% (w/w) of proanthocyanidins in the husk fibers with a high B-type procyanidin content. The husk fibers' crude extract showed promising results as an eco-friendly corrosion inhibitor for carbon steel AISI 1020 under neutral pH conditions. Although it formed a film on the metal surface in all tested concentrations (0.4, 0.8, 1.2, and 1.6 g L-1), the highest protective efficiency was shown at a concentration of 1.2 g L-1, determined by electrochemical techniques and mass loss. This was the first comprehensive report on coconut husk fibers' chemical composition, which was similar between the two varieties with potential for industrial application.
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Affiliation(s)
- Douglas Guedes
- Escola de Química, Universidade Federal do Rio de Janeiro, CT, Bloco E. Avenida Athos da Silveira Ramos, 149, Cidade Universitária, Rio de Janeiro 21941-909, RJ, Brazil
| | - Gabriel R Martins
- Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, CCS, Bloco H. Avenida Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro 21941-902, RJ, Brazil
| | - Lizeth Y A Jaramillo
- Escola de Química, Universidade Federal do Rio de Janeiro, CT, Bloco E. Avenida Athos da Silveira Ramos, 149, Cidade Universitária, Rio de Janeiro 21941-909, RJ, Brazil
| | - Diogo Simas Bernardes Dias
- Escola de Química, Universidade Federal do Rio de Janeiro, CT, Bloco E. Avenida Athos da Silveira Ramos, 149, Cidade Universitária, Rio de Janeiro 21941-909, RJ, Brazil
| | - Antonio Jorge R da Silva
- Instituto de Pesquisas de Produtos Naturais, Universidade Federal do Rio de Janeiro, CCS, Bloco H. Avenida Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro 21941-902, RJ, Brazil
| | - Marcia T S Lutterbach
- Divisão de Corrosão e Degradação, Instituto Nacional de Tecnologia, Avenida Venezuela, 82. Praça Mauá, Rio de Janeiro 20081-312, RJ, Brazil
| | - Leila Y Reznik
- Escola de Química, Universidade Federal do Rio de Janeiro, CT, Bloco E. Avenida Athos da Silveira Ramos, 149, Cidade Universitária, Rio de Janeiro 21941-909, RJ, Brazil
| | - Eliana F C Sérvulo
- Escola de Química, Universidade Federal do Rio de Janeiro, CT, Bloco E. Avenida Athos da Silveira Ramos, 149, Cidade Universitária, Rio de Janeiro 21941-909, RJ, Brazil
| | - Celuta S Alviano
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, CCS, Bloco I. Avenida Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro 21941-902, RJ, Brazil
| | - Daniela S Alviano
- Instituto de Microbiologia Paulo de Góes, Universidade Federal do Rio de Janeiro, CCS, Bloco I. Avenida Carlos Chagas Filho, 373, Cidade Universitária, Rio de Janeiro 21941-902, RJ, Brazil
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Development and Characterization of Weft-Knitted Fabrics of Naturally Occurring Polymer Fibers for Sustainable and Functional Textiles. Polymers (Basel) 2021; 13:polym13040665. [PMID: 33672322 PMCID: PMC7926964 DOI: 10.3390/polym13040665] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Revised: 02/15/2021] [Accepted: 02/18/2021] [Indexed: 12/13/2022] Open
Abstract
This study focuses on the potential uses in textiles of fibers of soy protein (SP) and chitin, which are naturally occurring polymers that can be obtained from agricultural and food processing by-products and wastes. The as-received natural fibers were first subjected to a three-step manufacturing process to develop yarns that were, thereafter, converted into fabrics by weft knitting. Different characterizations in terms of physical properties and comfort parameters were carried out on the natural fibers and compared to waste derived fibers of coir and also conventional cotton and cotton-based fibers, which are widely used in the textile industry. The evaluation of the geometry and mechanical properties revealed that both SP and chitin fibers showed similar fineness and tenacity values than cotton, whereas coir did not achieve the expected properties to develop fabrics. In relation to the moisture content, it was found that the SP fibers outperformed the other natural fibers, which could successfully avoid variations in the mechanical performance of their fabrics as well as impair the growth of microorganisms. In addition, the antimicrobial activity of the natural fibers was assessed against different bacteria and fungi that are typically found on the skin. The obtained results indicated that the fibers of chitin and also SP, being the latter functionalized with biocides during the fiber-formation process, showed a high antimicrobial activity. In particular, reductions of up to 100% and 60% were attained for the bacteria and fungi strains, respectively. Finally, textile comfort was evaluated on the weft-knitted fabrics of the chitin and SP fibers by means of thermal and tactile tests. The comfort analysis indicated that the thermal resistance of both fabrics was similar to that of cotton, whereas their air permeability was higher, particularly for chitin due to its higher fineness, which makes these natural fibers very promising for summer clothes. Both the SP and chitin fabrics also presented relatively similar values of fullness and softness than the pure cotton fabric in terms of body feeling and richness. However, the cotton/polyester fabric was the only one that achieved a good range for uses in winter-autumn cloths. Therefore, the results of this work demonstrate that non-conventional chitin and SP fibers can be considered as potential candidates to replace cotton fibers in fabrics for the textile industry due to their high comfort and improved sustainability. Furthermore, these natural fibers can also serve to develop novel functional textiles with antimicrobial properties.
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Medicinal plants: A potential source of novel bioactive compounds showing antimicrobial efficacy against pathogens infecting hair and scalp. GENE REPORTS 2020. [DOI: 10.1016/j.genrep.2020.100879] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Satheshkumar M, Anand B, Muthuvel A, Rajarajan M, Mohana V, Sundaramanickam A. Enhanced photocatalytic dye degradation and antibacterial activity of biosynthesized ZnO-NPs using curry leaves extract with coconut water. ACTA ACUST UNITED AC 2020. [DOI: 10.1007/s41204-020-00093-x] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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Das G, Shin HS, Kumar A, Vishnuprasad CN, Patra JK. Photo-mediated optimized synthesis of silver nanoparticles using the extracts of outer shell fibre of Cocos nucifera L. fruit and detection of its antioxidant, cytotoxicity and antibacterial potential. Saudi J Biol Sci 2020; 28:980-987. [PMID: 33424390 PMCID: PMC7785444 DOI: 10.1016/j.sjbs.2020.11.022] [Citation(s) in RCA: 22] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 10/30/2020] [Accepted: 11/01/2020] [Indexed: 11/22/2022] Open
Abstract
Presently, photo-mediated optimized synthesis of SNPs (CS-AgNPs) was carried out with the help of aqueous extracts of coconut (Cocos nucifera) outer shell fibre. Green synthesis of CS-AgNPs was undertaken under laboratory light conditions and characterized by several standard techniques such as UV–visible spectrophotometer (UV–Vis), X-ray diffraction pattern (XRD), Fourier transform infrared (FT-IR), and scanning electron microscopy (SEM) images and energy dispersive spectroscopy (EDX). UV–Vis spectra displayed a surface plasmon resonance peak at 468 nm equivalent to CS-AgNPs, and the FT-IR spectra confirmed the association of biological molecules from the extract in the synthesis process. The SEM image data confirmed the round and circular nature of CS-AgNPs. The EDX data presented the elemental configuration with a solid peak at 3 KeV that matched with the Ag. The synthesized CS-AgNPs exhibited substantial cytotoxicity potential against the HepG2 cells with (effective concentration (IC50) value of 15.28 µg/ml along with robust antioxidant potential, with respect to its 2,2-diphenyl-1-picrylhydrazyl (DPPH) scavenging (IC50 of 96.39 µg/ml) and reducing assay (IC0.5 of 209.96 µg/ml). The CS-AgNPs demonstrated encouraging antimicrobial potential against four different pathogenic bacteria and one Candida sp. with inhibition zone diameter ranged between 8.87 and 13.07 mm. Overall, the existing investigation suggested that CS-AgNPs can be an attractive, cost-effective, and environment-friendly candidate for its possible uses in the food, cosmetics, and therapeutic fields.
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Affiliation(s)
- Gitishree Das
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, Goyang-si 10326, Republic of Korea
| | - Han-Seung Shin
- Department of Food Science & Biotechnology, Dongguk University-Seoul, Goyang-si 10326, Republic of Korea
| | - Anuj Kumar
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Chethala N. Vishnuprasad
- Centre for Ayurveda Biology and Holistic Nutrition, The University of Trans-Disciplinary Health Sciences and Technology (TDU), Bengaluru 560064, India
| | - Jayanta Kumar Patra
- Research Institute of Biotechnology and Medical Converged Science, Dongguk University-Seoul, Goyang-si 10326, Republic of Korea
- Corresponding author.
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Catechin isolated from cashew nut shell exhibits antibacterial activity against clinical isolates of MRSA through ROS-mediated oxidative stress. Appl Microbiol Biotechnol 2020; 104:8279-8297. [PMID: 32857200 DOI: 10.1007/s00253-020-10853-z] [Citation(s) in RCA: 34] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2020] [Revised: 07/09/2020] [Accepted: 08/23/2020] [Indexed: 01/16/2023]
Abstract
Staphylococcus aureus causes severe infections and among all methicillin-resistant S. aureus (MRSA) remains a great challenge in spite of decade research of antibacterial compounds. Even though some synthetic antibiotics have been developed, they are not effective against MRSA, and hence, there is a search for natural, alternative and plant-based antibacterial compound. In this connection, catechin isolated from cashew nut shell was investigated for its antibacterial potential against MRSA. Catechin exhibited zone of inhibition (ZOI) and minimum inhibitory concentration (MIC) in a range of 15.1-19.5 mm and 78.1-156.2 μg/ml, respectively, against ATCC and clinical isolates of MRSA. Among all clinical isolates, clinical isolate-3 exhibited highest sensitivity to catechin. Catechin has arrested the growth of MRSA strains and also caused toxicity by membrane disruption which was illustrated by AO/EB fluorescence staining. Increased nucleic acid leakage (1.58-28.6-fold) and protein leakage (1.40-23.50-fold) was noticed in MRSA due to catechin treatment when compared to methicillin. Bacteria treated with catechin at its MIC showed 1.52-, 1.87- and 1.74-fold increase of ROS production in methicillin susceptible S. aureus (MSSA), MRSA and clinical isolate-3 strains, respectively, as compared to control. Superoxide dismutase (5.31-9.63 U/mg protein) and catalase (1573-3930 U/mg protein) were significantly decreased as compared to control in catechin-treated S. aureus. Thus, catechin exhibited antibacterial activity through oxidative stress by increased production of ROS and decreased antioxidant enzymes. Altogether results suggest that catechin is a promising lead compound with antibacterial potential against MRSA. KEY POINTS: • Catechin was isolated and identified as active compound in cashew nut shell. • Catechin exhibited antimicrobial activity against clinical isolates of MRSA. • Bacterial cell wall damage was caused by catechin in MRSA strains. • Catechin increased the oxidative stress in MRSA by intracellular ROS production.
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Jafarzadeh S, Jafari SM, Salehabadi A, Nafchi AM, Uthaya Kumar US, Khalil HA. Biodegradable green packaging with antimicrobial functions based on the bioactive compounds from tropical plants and their by-products. Trends Food Sci Technol 2020. [DOI: 10.1016/j.tifs.2020.04.017] [Citation(s) in RCA: 114] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Raghubeer EV, Phan BN, Onuoha E, Diggins S, Aguilar V, Swanson S, Lee A. The use of High-Pressure Processing (HPP) to improve the safety and quality of raw coconut (Cocos nucifera L) water. Int J Food Microbiol 2020; 331:108697. [PMID: 32563133 DOI: 10.1016/j.ijfoodmicro.2020.108697] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2020] [Revised: 05/14/2020] [Accepted: 05/27/2020] [Indexed: 02/07/2023]
Abstract
This research investigated the use of high-pressure processing (HPP) for inactivating vegetative pathogens and spoilage microbiota in fresh unfiltered coconut water (Cocos nucifera L) from nuts obtained from Florida and frozen CW from Brazil with pH >5.0 and storage at 4 °C. Additionally, CW was evaluated to determine if it supported the growth and toxin production of Clostridium botulinum with or without the use of HPP when stored at refrigeration temperatures. Samples of fresh unfiltered CW were inoculated to 5.5 to 6.5 logs/mL with multiple strain cocktails of E. coli O157:H7, Salmonella spp. and Listeria monocytogenes and HPP at 593 MPa for 3 min at 4 °C. HPP and inoculated non-HPP controls were stored at 4 °C for 54 and 75 days for Florida CW and Brazil CW, respectively. Results of analyses showed HPP samples with <1 CFU/mL and no detection (negative/25 mL) with enrichment procedures for the 3 inoculated pathogens for all analyses. The non-HPP control samples did not show growth of the pathogens but a gradual decrease in levels to ca. 3-Logs/mL by day 54 in the fresh Florida CW and similarly in frozen Brazil CW by Day 75. Microbial spoilage of uninoculated samples was evaluated for normal spoilage microbiota through 120 days storage at 4 °C. Microbial counts remained at ca. 2-logs with no detectable signs of spoilage for HPP samples through 120 d. The non-HPP control samples spoiled within 2 weeks of storage at 4 °C with gas production, cloudiness, and off-odors. To evaluate if CW supports the growth and toxin production of C. botulinum, samples of unfiltered and filtered (0.2 μm) CW were inoculated with either proteolytic or non-proteolytic C. botulinum spores at 2 log CFU/mL that were processed at 593 MPa for 3 min and stored at 4 °C and 10 °C for 45 days. Inoculated positive and non-inoculated negative controls were prepared and stored as the HPP treated and non-HPP samples. No growth of C. botulinum or toxin production was detected in either the unfiltered or filtered CW regardless if products were HPP treated or not. All inoculated samples with C. botulinum spores were enriched at Day-45 in PYGS media to determine the viability of the inoculated spores at the end of shelf-life and screened for C. botulinum toxins. In all samples, C. botulinum toxin Types A, B and E were detected indicating spores were viable throughout the storage. Type F toxin was not detected possibly due to inherent conditions in the samples that may affected toxin screening.
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Affiliation(s)
- Errol V Raghubeer
- JBT Corporation - Avure Technologies, HPP Science & Technology, 1830 Airport Exchange Blvd. Suite 130/160, Erlanger, KY 41018, USA.
| | - Bick Ngoc Phan
- JBT Corporation - Avure Technologies, HPP Science & Technology, 1830 Airport Exchange Blvd. Suite 130/160, Erlanger, KY 41018, USA
| | - Emmanuel Onuoha
- JBT Corporation - Avure Technologies, HPP Science & Technology, 1830 Airport Exchange Blvd. Suite 130/160, Erlanger, KY 41018, USA
| | - Sheylend Diggins
- JBT Corporation - Avure Technologies, HPP Science & Technology, 1830 Airport Exchange Blvd. Suite 130/160, Erlanger, KY 41018, USA
| | - Viviana Aguilar
- Institute for Food Safety and Health (IFSH), 6502 South Archer Road, Bedford Park, IL, USA
| | - Sara Swanson
- Institute for Food Safety and Health (IFSH), 6502 South Archer Road, Bedford Park, IL, USA
| | - Alvin Lee
- Institute for Food Safety and Health (IFSH), 6502 South Archer Road, Bedford Park, IL, USA
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Antistaphylococcal Activity of Extracts, Fractions, and Compounds of Acacia polyacantha Wild (Fabaceae). EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2020; 2020:2654247. [PMID: 32256637 PMCID: PMC7102469 DOI: 10.1155/2020/2654247] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2019] [Revised: 01/18/2020] [Accepted: 02/24/2020] [Indexed: 01/31/2023]
Abstract
Acacia polyacantha is a medicinal plant traditionally used to treat livestock diseases and gastrointestinal infections; our study was undertaken to evaluate the antistaphylococcal activities of the methanolic leaf, bark, and root extracts, fractions, and compounds from Acacia polyacantha against a panel of 14 multidrug-resistant Staphylococcus bacterial strains overexpressing efflux pumps. The study was also extended to investigate two possible modes of action, that is, influence on bacterial growth kinetics and influence on proton-ATPase pumps, of the most active compound against a reference strain. Materials and Methods. The crude extracts after extraction were subjected to column chromatography. Antibacterial assays of extracts, fractions, and compounds alone and in the presence of efflux pump inhibitors were carried out using the broth microdilution method and the study of two mechanisms of action achieved by standard methods with the most active compound. Results. The phytochemical study of Acacia polyacantha leaves leads to the isolation of stigmasterol (1), β-amyrin (2), 3-O-methyl-D-chiro-inositol (3), epicatechin (4), quercetin-3-O-galactoside (5), 3-O-[β-D-xylopyranosyl-(1 ⟶ 4)-β-D-galactopyranosyl]-oleanolic acid (6), 3-O-[β-galactopyranosyl-(1⟶ 4)-β-D-galactopyranosyl]-oleanolic acid (7) and that of leaves lead to the isolation of lupeol (8) 2,3-dihydroxypropyltetracosanoate (9), and methyl-gallate (10). Leaf, root, and bark extracts inhibited 92.85% (13/14), 92.85% (13/14), and 71.43 % (10/14) of the tested bacteria strains, respectively, with minimum inhibitory concentration (MIC) varying between 16 and 1024 μg/mL. Fractions exhibited better activities compared to those of their extracts of origin, as their MICs ranged from 16 to 512 μg/mL, with fractions from leaves being more active than those obtained from barks. Compounds had varying activities; MICs varied from 16 to 512 μg/mL with compound 4 presenting the best activity as MICs ≤100 μg/mL were obtained against 11 of the tested bacteria. The activities of extracts, fractions, and compounds were improved in the presence of carbonyl cyanide m-chlorophenylhydrazone (CCCP) as an efflux pump inhibitor to as much as >128 folds. Meanwhile, in the presence of chlorpromazine as an efflux pump inhibitor, only the activity of compound 10 was improved on 10 of the tested bacteria strains. Compound 4 prolonged the lag phase of the growth kinetic in a concentration-dependent manner and equally inhibited the proton-ATPase pumps of the tested bacteria strains. Conclusion. The present study demonstrates the antistaphylococcal potential of Acacia polyacantha and its constituents to combat bacterial infections alone or in combination with efflux pump inhibitors.
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Singla RK, Dubey AK. Phytochemical Profiling, GC-MS Analysis and α-Amylase Inhibitory Potential of Ethanolic Extract of Cocos nucifera Linn. Endocarp. Endocr Metab Immune Disord Drug Targets 2020; 19:419-442. [PMID: 30484412 DOI: 10.2174/1871530319666181128100206] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/04/2017] [Revised: 05/27/2018] [Accepted: 06/27/2018] [Indexed: 11/22/2022]
Abstract
BACKGROUND Drugs with post-prandial action constitute one of the main courses of treatments for diabetes. OBJECTIVE In the present investigation, we have explored the α-amylase inhibitory potential of ethanolic extract of Cocos nucifera endocarp. METHODS DNS based assay was done to assess the α-amylase inhibition potential of ethanolic extract. Phytochemical screening and GC-MS analysis were done in order to assess the chemical profiling of extract. In silico docking studies were done using VLife MDS 4.6 software and the probable molecules, predicted after GC-MS analysis, were docked with the co-crystallized (acarbose) tracked active site and rest all cavities of porcine pancreatic α-amylase (1OSE). ADMET analysis was done using StarDrop 6.4, Derek Nexus and P450 Modules from Optibrium Ltd. and LHASA Ltd. RESULTS DNS based α-amylase assay indicated that the IC50 value of extract lies in the range of 63- 126 µg/ml and at higher doses, i.e. above 250 µg/ml, it has better α-amylase inhibition than the standard drug, acarbose. Phytochemical screening indicated that ethanolic extract is rich in alkaloids, tannins, flavonoids, saponins, triterpenes, glycosides, carbohydrates, terpenoids, quinones and lactones. Further, GC-MS analysis (where Similarity Index was > 90) predicted that the probable phytoconstituents present in the ethanolic extract are myristic acid, syringaldehyde, eugenol, vanillin, 2,4-di-tert-butylphenol, lauric acid, palmitic acid methyl ester and γ-sitosterol. γ-Sitosterol showed the strong affinity towards the active site which was tracked by a co-crystallized ligand along with cavity 1 and 2 while significant interactions were observed in case of co-crystallized tracked active site as well as cavity 4 of 1OSE. Ethanolic extract of C. nucifera has no hemolytic effect. CONCLUSION Its ability to effectively inhibit α-amylase may be attributed to the presence of the above probable molecules, which will be explored further.
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Affiliation(s)
- Rajeev Kumar Singla
- Division of Biological Sciences and Engineering, Netaji Subhas University of Technology, New Delhi-110078, India
| | - Ashok Kumar Dubey
- Division of Biological Sciences and Engineering, Netaji Subhas University of Technology, New Delhi-110078, India
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Chithra MA, Ijinu TP, Kharkwal H, Sharma RK, Pushpangadan P, George V. Phenolic rich Cocos nucifera inflorescence extract ameliorates inflammatory responses in LPS-stimulated RAW264.7 macrophages and toxin-induced murine models. Inflammopharmacology 2019; 28:1073-1089. [DOI: 10.1007/s10787-019-00620-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Accepted: 07/13/2019] [Indexed: 10/26/2022]
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Sowndarya J, Farisa Banu S, Madhura G, Yuvalakshmi P, Rubini D, Bandeira Junior G, Baldisserotto B, Vadivel V, Nithyanand P. Agro food by-products and essential oil constituents curtail virulence and biofilm of Vibrio harveyi. Microb Pathog 2019; 135:103633. [PMID: 31326562 DOI: 10.1016/j.micpath.2019.103633] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2019] [Revised: 07/17/2019] [Accepted: 07/17/2019] [Indexed: 02/02/2023]
Abstract
Vibrio harveyi causes severe loss to the aquaculture industry due to its virulence, which is mediated by Quorum sensing (QS) and biofilm formation. In the current study, we have explored the anti-virulent properties and biofilm disruption ability of luteolin (extracted from coconut shell) and linalool against this important aquaculture pathogen. HPLC analysis of the methanolic extract of coconut shells revealed a single major peak which matched to the standard luteolin which was further elucidated by NMR studies. Further, luteolin and linalool were screened for their ability to inhibit biofilms and various quorum sensing mediated virulence factors of V. harveyi. The Minimum Inhibitory Concentration (MIC) of the two compounds was determined and the sub-inhibitory concentrations of the compounds were able to inhibit biofilm formation. Both the compounds disrupted about 60-70% mature biofilms, which was also visually observed by light microscopy. Both linalool and luteolin exhibited a significant reduction in the production of EPS and alginate in the biofilms matrix of V. harveyi which was confirmed by Scanning Electron Microscopy (SEM). Both compounds inhibited the swarming and swimming motility, the crucial quorum sensing (QS) mediated virulence of V. harveyi. The present study shows the presence of valuable polyphenolic compound like luteolin in coconut shells that are discarded as a waste. From the present study we envisage that luteolin and linalool can serve as potent anti-virulent agents to combat QS mediated infections against aquaculture pathogens.
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Affiliation(s)
- Jothipandiyan Sowndarya
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Sanaulla Farisa Banu
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Gunasekaran Madhura
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Prabakaran Yuvalakshmi
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Durairajan Rubini
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India
| | - Guerino Bandeira Junior
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Bernardo Baldisserotto
- Department of Physiology and Pharmacology, Universidade Federal de Santa Maria, Santa Maria, RS, Brazil
| | - Vellingiri Vadivel
- Chemical Biology Lab, School of Chemical and Biotechnology (SCBT/CARISM), SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401, Tamil Nadu, India.
| | - Paramasivam Nithyanand
- Biofilm Biology Laboratory, Centre for Research on Infectious Diseases (CRID), School of Chemical and Biotechnology, SASTRA Deemed University, Tirumalaisamudram, Thanjavur 613 401,Tamil Nadu, India.
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Abstract
This review discusses the current state of the viral metabolism field and gaps in knowledge that will be important for future studies to investigate. We discuss metabolic rewiring caused by viruses, the influence of oncogenic viruses on host cell metabolism, and the use of viruses as guides to identify critical metabolic nodes for cancer anabolism. We also discuss the need for more mechanistic studies identifying viral proteins responsible for metabolic hijacking and for in vivo studies of viral-induced metabolic rewiring. Improved technologies for detailed metabolic measurements and genetic manipulation will lead to important discoveries over the next decade.
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Affiliation(s)
- Shivani K Thaker
- Department of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles (UCLA), Los Angeles, CA, 90095, USA
| | - James Ch'ng
- Department of Pediatrics, Division of Hematology/Oncology, David Geffen School of Medicine, UCLA, Los Angeles, CA, 90095, USA
| | - Heather R Christofk
- Department of Biological Chemistry, David Geffen School of Medicine, University of California, Los Angeles (UCLA), Los Angeles, CA, 90095, USA.
- Jonsson Comprehensive Cancer Center, UCLA, Los Angeles, CA, 90095, USA.
- Eli and Edythe Broad Center of Regenerative Medicine and Stem Cell Research, UCLA, Los Angeles, CA, 90095, USA.
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Bielfeldt S, Blaak J, Laing S, Schleißinger M, Theiss C, Wilhelm KP, Staib P. Deposition of plant lipids after single application of a lip care product determined by confocal raman spectroscopy, corneometry and transepidermal water-loss. Int J Cosmet Sci 2019; 41:281-291. [PMID: 31002377 PMCID: PMC6851866 DOI: 10.1111/ics.12533] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2018] [Accepted: 04/12/2019] [Indexed: 11/27/2022]
Abstract
OBJECTIVE Lip treatment products often incorporate oils and waxes in their formulations, and a desired outcome of their use is to prevent lip dryness and roughness as well as help to repair this condition. The objective of this study was to combine confocal Raman spectroscopy with skin capacitance (corneometry) and transepidermal water loss (closed chamber Aquaflux system) measurements, in the evaluation of the degree of moisturization and lip skin penetration of a fruit wax (Rhus vernicula peel cera) and natural oil-based (Cocos nucifera fruit oil and Olea europea oil) lip care product, following a single application. METHODS The study was conducted on a total of 15 healthy female volunteers. Instrumental measurements were performed before and 30 min, 2 h and 6 h after a single application of the product. RESULTS Lip skin barrier function as well as lip hydration were significantly improved and penetration of olive oil was maintained for at least 6 h post product application. The deposition of the three component lipids (berry fruit wax, coconut oil and olive oil) into the stratum corneum after a single application of the lip care product was maintained and data significant for 2-6 h post product application. Lipid deposition was regarded as a positive long-lasting skin care (depot-) effect combined with a profound hydrating effect for about 6 h. CONCLUSION The tri-method approach taken in this study is deemed relevant and valid for measuring lip hydration offering a complimentary assessment of the barrier function of lip skin and interactive effects of cosmetic ingredients.
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Affiliation(s)
- S Bielfeldt
- proDERM Institute of Applied Dermatological Research GmbH, Schenefeld-Hamburg, Germany
| | - J Blaak
- Research & Development and Regulatory Affairs, Kneipp GmbH, Würzburg, Germany
| | - S Laing
- proDERM Institute of Applied Dermatological Research GmbH, Schenefeld-Hamburg, Germany
| | - M Schleißinger
- Research & Development and Regulatory Affairs, Kneipp GmbH, Würzburg, Germany
| | - C Theiss
- Research & Development and Regulatory Affairs, Kneipp GmbH, Würzburg, Germany
| | - K-P Wilhelm
- proDERM Institute of Applied Dermatological Research GmbH, Schenefeld-Hamburg, Germany
| | - P Staib
- Research & Development and Regulatory Affairs, Kneipp GmbH, Würzburg, Germany
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Li S, Li J, Sun Y, Huang Y, He J, Zhu Z. Transport of Flavanolic Monomers and Procyanidin Dimer A2 across Human Adenocarcinoma Stomach Cells (MKN-28). JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:3354-3362. [PMID: 30848127 DOI: 10.1021/acs.jafc.9b00378] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
It has been proven that A-type procyanidins, containing an additional ether bond, compared to B-type procyanidins are also bioavailable in vitro and in vivo. However, their bioavailability and absorption in the gastrointestinal tract remain uncertain. In this study, a model of the human adenocarcinoma stomach cell line (MKN-28) was established to explore the cellular transport of flavanolic monomers and procyanidin dimer A2, which were isolated from the litchi pericarp extract. After the integrity and permeability of the cell monolayer were ensured by measurement of the transepithelial electrical resistance and the apparent permeability coefficient for Lucifer yellow, the transportation of procyanidins A2 and B2, (-)-epicatechin (EC), and (+)-catechin (CC) was studied at pH 3.0, 5.0, or 7.0 in the apical side, with compound concentrations of 0.05 and 0.1 mg/mL based on the cytotoxicity test. High-performance liquid chromatography and liquid chromatography-mass spectrometry analyses indicated that EC, CC, and A2 were transported in the MKN-28 cell line from 30 to 180 min, while B2 showed no transport. The maximal transport efficiencies of EC, CC, and A2 were 23 ± 0.81, 13.16 ± 1.53, and 16.41 ± 1.36%, respectively, existing at 120, 180, and 120 min of transportation. Laser scanning confocal microscopy analysis presented the dynamic transmission of EC, in accordance with the result of concentration determination, suggesting that the A-type procyanidins are possibly absorbed through the stomach barrier, which is pH- and time-dependent.
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Olatunde OO, Benjakul S, Vongkamjan K. Coconut husk extract: antibacterial properties and its application for shelf‐life extension of Asian sea bass slices. Int J Food Sci Technol 2018. [DOI: 10.1111/ijfs.14000] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
Affiliation(s)
- Oladipupo Odunayo Olatunde
- Department of Food Technology Faculty of Agro‐Industry Prince of Songkla University Hat Yai, Songkhla 90112 Thailand
| | - Soottawat Benjakul
- Department of Food Technology Faculty of Agro‐Industry Prince of Songkla University Hat Yai, Songkhla 90112 Thailand
| | - Kitiya Vongkamjan
- Department of Food Technology Faculty of Agro‐Industry Prince of Songkla University Hat Yai, Songkhla 90112 Thailand
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Morgado S, Morgado M, Plácido AI, Roque F, Duarte AP. Arbutus unedo L.: From traditional medicine to potential uses in modern pharmacotherapy. JOURNAL OF ETHNOPHARMACOLOGY 2018; 225:90-102. [PMID: 29981432 DOI: 10.1016/j.jep.2018.07.004] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 07/03/2018] [Accepted: 07/03/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Arbutus unedo L., the strawberry tree (Ericaceae family) is of increasing interest because of its common traditional, industrial, chemical and pharmaceutical uses. The plant is a typical evergreen plant of the Mediterranean basin, as well as of other regions with hot summers and mild rainy winters. This review covers the studies relevant to Arbutus unedo L. utilization in the current pharmacological therapy. MATERIALS AND METHODS The available information on traditional uses, phytochemistry and biological activities of Arbutus unedo L. was collected from scientific databases through a search using the keywords 'Arbutus unedo L.' and/or 'strawberry tree' in 'Google Scholar', 'Pubmed', 'Sciencedirect', 'SpringerLink', 'Web of Science - Clarivate Analytics' and 'Wiley'. Unpublished Ph.D. and M.Sc. dissertations were also consulted for chemical composition, biological activities and traditional uses of Arbutus unedo L. and for manual search of additional references. RESULTS The fruits of the plant have been traditionally used as antiseptics, diuretics and laxatives in folk medicine, while the leaves have been used due to their diuretic, urinary antiseptic, antidiarrheal, astringent, depurative and antihypertensive properties. According to the scientific literature survey, different extracts obtained from Arbutus unedo L. have demonstrated a high pharmacological potential due to their in vitro and preclinical antibiotic, antifungal, antiparasitic, antiaggregant, antidiabetic, antihypertensive, anti-inflammatory, antitumoral, antioxidant, and spasmolytic properties. CONCLUSION This review suggests that A. unedo is a promising source of phytopharmaceutical products. The potential advantages of Arbutus unedo are related with the presence of polyphenolic compounds in its composition. However, further studies are needed to ascertain some profitable effects in humans. The beneficial effects associated with this shrub suggest that Arbutus unedo can be used for the development of new drugs to treat diseases such diabetes, hypertension, among others. Nonetheless, the safety of the Arbutus unedo compounds should also be examined.
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Affiliation(s)
- Sandra Morgado
- Hospital Centre of Cova da Beira, E.P.E., Quinta do Alvito, 6200-251 Covilhã, Portugal.
| | - Manuel Morgado
- Hospital Centre of Cova da Beira, E.P.E., Quinta do Alvito, 6200-251 Covilhã, Portugal; University of Beira Interior, Faculty of Health Sciences, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal; School of Health Sciences, Polytechnic Institute of Guarda, Avenida Rainha D. Amélia, S/N, 6300-749 Guarda, Portugal; CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal.
| | - Ana I Plácido
- School of Health Sciences, Polytechnic Institute of Guarda, Avenida Rainha D. Amélia, S/N, 6300-749 Guarda, Portugal; Research Unit for the Development of the Interior, Avª Dr. Francisco Sá Carneiro, no. 50, 6300-559 Guarda, Portugal.
| | - Fátima Roque
- School of Health Sciences, Polytechnic Institute of Guarda, Avenida Rainha D. Amélia, S/N, 6300-749 Guarda, Portugal; CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal; Research Unit for the Development of the Interior, Avª Dr. Francisco Sá Carneiro, no. 50, 6300-559 Guarda, Portugal.
| | - Ana Paula Duarte
- University of Beira Interior, Faculty of Health Sciences, Avenida Infante D. Henrique, 6200-506 Covilhã, Portugal; CICS-UBI - Health Sciences Research Centre, University of Beira Interior, Av. Infante D. Henrique, 6200-506 Covilhã, Portugal.
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Agostini-Costa TDS. Bioactive compounds and health benefits of some palm species traditionally used in Africa and the Americas - A review. JOURNAL OF ETHNOPHARMACOLOGY 2018; 224:202-229. [PMID: 29842962 DOI: 10.1016/j.jep.2018.05.035] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/24/2017] [Revised: 05/23/2018] [Accepted: 05/24/2018] [Indexed: 06/08/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE According to previous ethno-medicinal reviews, Cocos nucifera, Elaeis guineensis and Phoenix dactylifera are among the main palms which are often used on the American and African continents to treat infections, infestations and disorders in the digestive, respiratory, genito-urinary, dermal, endocrine, cardiovascular, muscular-skeletal, mental and neural systems, as well as neoplasms, dental issues and metabolic and nutritional disorders. In addition, one or more species of the wild genera Acrocomia, Areca, Astrocaryum, Attalea, Bactris, Borassus, Calamus, Chamaedorea, Chamaerops, Euterpe, Hyphaene, Mauritia, Oenocarpus and Syagrus have a high number of records of these ethno-medicinal uses. The most used parts of the palm tree are the fruits, followed by roots, seeds, leaves and flower sap. AIM OF THE STUDY This review discusses the phytochemical composition and the pharmacological properties of these important ethno-medicinal palms, aiming to provide a contribution to future research prospects. MATERIALS AND METHODS Significant information was compiled from an electronic search in widely used international scientific databases (Google Scholar, Science Direct, SciFinder, Web of Science, PubMed, Wiley on line Library, Scielo, ACS Publications), and additional information was obtained from dissertations, theses, books and other relevant websites. RESULTS Palms, in general, are rich in oils, terpenoids and phenolic compounds. Fruits of many species are notable for their high content of healthy oils and fat-soluble bioactive compounds, mainly terpenoids, such as pigment carotenoids (and provitamin A), phytosterols, triterpene pentacyclics and tocols (and vitamin E), while other species stood out for their phenolic compounds derived from benzoic and cinnamic acids, along with flavan-3-ol, flavone, flavonol, and stilbene compounds or anthocyanin pigments. In addition to fruits, other parts of the plant such as seeds, leaves, palm heart, flowers and roots are also sources of many bioactive compounds. These compounds are linked to the ethno-medicinal use of many palms that improve human health against infections, infestations and disorders of human systems. CONCLUSIONS Palms have provided bioactive samples that validate their effectiveness in traditional medicine. However, the intensive study of all palm species related to ethno-medicinal use is needed, along with selection of the most appropriate palm accessions, ripe stage of the fruit and /or part of the plant. Furthermore, the complete profiles of all phytochemicals, their effects on animal models and human subjects, and toxicological and clinical trials are suggested, which, added to the incorporation of improved technological processes, should represent a significant advance for the implementation of new opportunities with wide benefits for human health.
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Evaluation of antioxidant and antimicrobial properties of solvent extracts of agro-food by-products (cashew nut shell, coconut shell and groundnut hull). ACTA ACUST UNITED AC 2018. [DOI: 10.1016/j.anres.2018.10.018] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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Prakash A, Nithyanand P, Vadivel V. In vitro antibacterial activity of nut by-products against foodborne pathogens and their application in fresh-cut fruit model. JOURNAL OF FOOD SCIENCE AND TECHNOLOGY 2018; 55:4304-4310. [PMID: 30228429 PMCID: PMC6133848 DOI: 10.1007/s13197-018-3373-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 07/24/2018] [Accepted: 07/31/2018] [Indexed: 10/28/2022]
Abstract
Aqueous extract of nut by-products (cashewnut shell, coconut shell, and peanut hull) were studied for their physicochemical properties, antibacterial activity and food preservation potential in an artificially inoculated fresh-cut fruit (papaya) model. Physicochemical characteristics revealed the colour, odor, nearly neutral pH (6.67-6.83), high water solubility (69.18-82.63%) and total phenolic content (1130.54-2403.41 mg GAE/100 g) of the extracts. The antibacterial property of the extracts evaluated by zone of inhibition assay revealed that cashew nut shell extract had a strong inhibition effect on Escherichia coli (18 mm), Listeria monocytogenes (18 mm), and Salmonella enterica (16 mm). Food preservative effect of extracts was examined in an artificially inoculated fresh-cut papaya model, and both cashewnut and coconut shell extracts significantly reduced the population of the above mentioned foodborne pathogens. However, when compared to coconut shell extract, the application of cashewnut shell extract was found to affect the sensory property of the fresh-cut fruit as darkening of the cut fruit was observed. So, the coconut shell extract could be considered as a natural source of antibacterial agent for food preservative applications. Phytochemical investigation through LC-MS/MS technique revealed that luteolin as the major constituent of coconut shell extract.
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Affiliation(s)
- Anand Prakash
- Chemical Biology Lab (ASK-II-409), School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, Tamilnadu India
| | - Paramasivam Nithyanand
- Biofilm Biology Lab, School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, Tamilnadu India
| | - Vellingiri Vadivel
- Chemical Biology Lab (ASK-II-409), School of Chemical and Biotechnology, SASTRA Deemed University, Thanjavur, Tamilnadu India
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Muritala HF, Akolade JO, Akande SA, Abdulazeez AT, Aladodo RA, Bello AB. Antioxidant and alpha-amylase inhibitory potentials of Cocos nucifera husk. Food Sci Nutr 2018; 6:1676-1683. [PMID: 30258612 PMCID: PMC6145255 DOI: 10.1002/fsn3.741] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2018] [Revised: 06/21/2018] [Accepted: 06/25/2018] [Indexed: 12/20/2022] Open
Abstract
Concoctions containing extract from Cocos nucifera husk fiber are used in Nigeria by traditional medicine practitioners for management of diabetes and its associated complications. Preliminary antidiabetic study was designed to validate the folkloric usage of the plant extract. Dried coconut husk fiber was pulverized and extracted with methanol, followed by partitioning of the methanolic extract in ethyl acetate. Phenolic content, radical scavenging activity and antioxidant capacity as well as inhibitory effects of C. nucifera methanolic (CN-M) extract and its ethyl acetate (CN-E) fraction on pancreatic α-amylase and lipid peroxidation were determined. Total phenolic content and antioxidant capacity of CN-E fraction were significantly higher than that of CN-M extract, whereas there was no significant difference in their ability to scavenge free radicals. The CN-E fraction also exhibited higher in vitro and in vivo inhibitory effects on α-amylase activity and lipid peroxidation; reducing blood glucose level within 5 days following intraperitoneal administration of the C. nucifera extract to alloxan-induced hyperglycemic rats. The phenolic-rich extracts from coconut husk can be further explored as nutraceutical supplement in food formulation for diabetic patients.
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Affiliation(s)
| | | | - Sarah Abimbola Akande
- Biotechnology Advanced Research CentreSheda Science and Technology ComplexAbujaNigeria
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Okur ME, Ayla Ş, Çiçek Polat D, Günal MY, Yoltaş A, Biçeroğlu Ö. Novel insight into wound healing properties of methanol extract of Capparis ovata Desf. var. palaestina Zohary fruits. J Pharm Pharmacol 2018; 70:1401-1413. [DOI: 10.1111/jphp.12977] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/23/2017] [Accepted: 06/15/2018] [Indexed: 12/13/2022]
Abstract
Abstract
Objectives
The objective of this study was to investigate the wound healing activity of Capparis ovata var. palaestina fruit extract in mice. For this aim, wound healing, in vitro antimicrobial and antioxidant activities, HPLC, phenolic and flavonoid compounds analyses were performed.
Methods
The wound healing effect was tested by excisional wound model. Wound closure was measured for 14 days and at 14th day wound healing was assessed by levels of TGF-β, VEGF, COL1A1 and angiogenesis, granulation tissue thickness, epidermal and dermal regeneration. The antioxidant activity was calculated by DPPH and ABTS free radical scavenging assays. Antimicrobial ability was evaluated by minimum inhibitory concentration and agar well diffusion tests.
Key findings
The extract indicated significant antioxidant activity while it also exhibited antimicrobial activity. Rutin was found in the extract according to HPLC study. Moreover, the extract was found to have rich phenolic and flavonoid contents. Histological evaluation showed that extract group induced significant (P < 0.001) wound healing activity compared to control group. Furthermore, extract group increased wound healing rates by promoting granulation tissue, epidermal regeneration, angiogenesis, collagen, TGF-β and VEGF.
Conclusions
The results clarified that the extract possesses antioxidant, antimicrobial activity and thus could provide a valuable contribution to the wound healing.
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Affiliation(s)
- Mehmet Evren Okur
- Faculty of Pharmacy, Department of Pharmacology, Anadolu University, Eskişehir, Turkey
| | - Şule Ayla
- Department of Histology and Embryology, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
- Regenerative and Restorative Medical Research Center, Istanbul Medipol University, Istanbul, Turkey
| | - Derya Çiçek Polat
- Faculty of Pharmacy, Department of Pharmaceutical Botany, Ankara University, Ankara, Turkey
| | - Mehmet Y Günal
- Faculty of Medicine, Department of Physiology, Alanya Alaaddin Keykubat University, Antalya, Turkey
| | - Ayşegül Yoltaş
- Faculty of Science, Fundamental and Industrial Microbiology Division, Department of Biology, Ege University, Izmir, Turkey
| | - Özge Biçeroğlu
- Department of Histology and Embryology, School of Medicine, Istanbul Medipol University, Istanbul, Turkey
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Hong H, Lee JH, Kim SK. Phytochemicals and antioxidant capacity of some tropical edible plants. ASIAN-AUSTRALASIAN JOURNAL OF ANIMAL SCIENCES 2018; 31:1677-1684. [PMID: 29642672 PMCID: PMC6127596 DOI: 10.5713/ajas.17.0903] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 12/13/2017] [Accepted: 03/22/2018] [Indexed: 12/14/2022]
Abstract
OBJECTIVE To find biological functions such as antibacterial and antioxidant activities in several tropical plants and to investigate the possibility of antibiotic substitute agents to prevent and treat diseases caused by pathogenic bacteria. METHODS Plants such as Poncirus trifoliata fruit (Makrut), Zingiber officinale Rosc (Khing), Areca catechu L. (Mak), Solanum melongena L. I (Makkhuayao), and Solanum melongena L. II (Makhurapro) were extracted by methanol, n-hexane, chloroform, ethyl acetate, butanol and water. The free radical scavenging activities were measured using 2-diphenyl-2-picryl hydrazyl photometric assay. Antibacterial activities with a minimum inhibitory concentration (MIC) were observed by agar diffusion assay against pathogenic strains of Escherichia coli, Burkholderia sp., Haemopilus somnus, Haemopilus parasuis, Clostridium perfringens, and Pantoea agglomerans. RESULTS Poncirus trifoliata fruit methanol extract showed antibacterial activities against gram-negative and gram-positive pathogens. Additionally, this showed the strongest antibacterial activity against Burkholderia sp. and Haemopilus somnus with MIC 131 μg/mL, respectively. Areca catechu L. water extract showed antibacterial activities against Burkholderia sp., Haemopilus somnus, and Haemopilus parasuis. The MIC value for Haemopilus parasuis was 105 μg/mL in this. Antioxidant activity of Zingiber officinale Rosc n-hexane extract showed 2.23 mg/mL effective concentration 50% (EC50) value was the highest activity among tropical plants extracts. Total polyphenol content in Zingiber officinale Rosc methanol extract was 48.4 μg/mL and flavonoid content was 22.1 μg/mL showed the highest values among tested plants extracts. CONCLUSION Taken together, these results suggest that tropical plants used in this study may have a potential benefit as an alternative antibiotics agent through their antibacterial and antioxidant activities.
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Affiliation(s)
- Heeok Hong
- Department of Medical Science, School of Medicine, Konkuk University, Seoul 05029, Korea
| | - Jun-Hyeong Lee
- Department of Animal Sciences and Technology, Konkuk University, Seoul 05029, Korea
| | - Soo-Ki Kim
- Department of Animal Sciences and Technology, Konkuk University, Seoul 05029, Korea
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Lin TK, Zhong L, Santiago JL. Anti-Inflammatory and Skin Barrier Repair Effects of Topical Application of Some Plant Oils. Int J Mol Sci 2017; 19:E70. [PMID: 29280987 PMCID: PMC5796020 DOI: 10.3390/ijms19010070] [Citation(s) in RCA: 237] [Impact Index Per Article: 33.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 12/14/2017] [Accepted: 12/20/2017] [Indexed: 01/19/2023] Open
Abstract
Plant oils have been utilized for a variety of purposes throughout history, with their integration into foods, cosmetics, and pharmaceutical products. They are now being increasingly recognized for their effects on both skin diseases and the restoration of cutaneous homeostasis. This article briefly reviews the available data on biological influences of topical skin applications of some plant oils (olive oil, olive pomace oil, sunflower seed oil, coconut oil, safflower seed oil, argan oil, soybean oil, peanut oil, sesame oil, avocado oil, borage oil, jojoba oil, oat oil, pomegranate seed oil, almond oil, bitter apricot oil, rose hip oil, German chamomile oil, and shea butter). Thus, it focuses on the therapeutic benefits of these plant oils according to their anti-inflammatory and antioxidant effects on the skin, promotion of wound healing and repair of skin barrier.
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Affiliation(s)
- Tzu-Kai Lin
- Department of Dermatology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung 83301, Taiwan.
| | - Lily Zhong
- California State University, Los Angeles, School of Nursing, 5151 State University Dr, Los Angeles, CA 90032, USA.
| | - Juan Luis Santiago
- Dermatology Service & Translational Research Unit (UIT), Hospital General Universitario de Ciudad Real, 13005 Ciudad Real, Spain.
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Sureshkumar J, Silambarasan R, Ayyanar M. An ethnopharmacological analysis of medicinal plants used by the Adiyan community in Wayanad district of Kerala, India. Eur J Integr Med 2017. [DOI: 10.1016/j.eujim.2017.04.006] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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BISPO VANDERSONS, DANTAS LUCASS, CHAVES FILHO ADRIANOB, PINTO ISABELLAF, SILVA RAILMARAPDA, OTSUKA FELIPEA, SANTOS RODRIGOB, SANTOS ALINEC, TRINDADE DANIELLEJ, MATOS HUMBERTOR. Reduction of the DNA damages, Hepatoprotective Effect and Antioxidant Potential of the Coconut Water, ascorbic and Caffeic Acids in Oxidative Stress Mediated by Ethanol. ACTA ACUST UNITED AC 2017; 89:1095-1109. [DOI: 10.1590/0001-3765201720160581] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2016] [Accepted: 01/04/2017] [Indexed: 11/21/2022]
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Antiviral Activity of SIO2–Polyphenol Composites Prepared Mechanochemically from Plant Raw Materials. Pharm Chem J 2016. [DOI: 10.1007/s11094-016-1497-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Valadez-Carmona L, Cortez-García RM, Plazola-Jacinto CP, Necoechea-Mondragón H, Ortiz-Moreno A. Effect of microwave drying and oven drying on the water activity, color, phenolic compounds content and antioxidant activity of coconut husk ( Cocos nucifera L.). Journal of Food Science and Technology 2016; 53:3495-3501. [PMID: 27777455 DOI: 10.1007/s13197-016-2324-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 08/06/2016] [Accepted: 08/25/2016] [Indexed: 10/21/2022]
Abstract
The coconut (Cocos nucifera L.) husk is basically composed by fiber and pith material and remained under-utilized. This is an important source of phenolic compounds that could be used as functional ingredients. The aim of this study was to determine the effect of: oven-drying (OD) and microwave drying (MD), on the water activity, color, phenolic compound content and antioxidant activity of coconut husk. The OD was performed at 60 °C for 12 h and MD was performed at 900 W for 10 min. The total phenolic content (TPC) in fresh coconut husk was 64.2 mg GAE/g dry wt and significant higher than observed after OD and MD of 35.8 and 45.5 mg GAE/g dry wt, respectively. Ten phenols were identified in fresh and dehydrated coconut husks. The husk MD showed an increase in the content of gallic, 4-hydroxybenzoic, ferulic and syringic acids and epicatechin compared with the fresh; while coconut husk OD and MD, showed a decrease in the content of vanillic acid, vanillin, catequin and kaempferol. The antioxidant activity decreased after both OD and MD. However, MD resulted in a better antioxidant activity in husk than OD. MD of husk resulted into better retention of preserved color, TPC and TFC than OD.
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Affiliation(s)
- Lourdes Valadez-Carmona
- Escuela Nacional de Ciencias Biológicas, Departamento de Ingeniería Bioquímica, Instituto Politécnico Nacional, Wilfrido Massieu esq. Cda. Luis Stampa s/n, c.p. 07738 Gustavo A. Madero, Ciudad de México, México
| | - Rosa María Cortez-García
- Escuela Nacional de Ciencias Biológicas, Departamento de Ingeniería Bioquímica, Instituto Politécnico Nacional, Wilfrido Massieu esq. Cda. Luis Stampa s/n, c.p. 07738 Gustavo A. Madero, Ciudad de México, México
| | - Carla Patricia Plazola-Jacinto
- Escuela Nacional de Ciencias Biológicas, Departamento de Ingeniería Bioquímica, Instituto Politécnico Nacional, Wilfrido Massieu esq. Cda. Luis Stampa s/n, c.p. 07738 Gustavo A. Madero, Ciudad de México, México
| | - Hugo Necoechea-Mondragón
- Coordinación de Cooperación Académica, Instituto Politécnico Nacional, Avenida Miguel Othón de Mendizábal s/n, Colonia La Escalera, c.p. 07738 Gustavo A. Madero, Ciudad de México México
| | - Alicia Ortiz-Moreno
- Escuela Nacional de Ciencias Biológicas, Departamento de Ingeniería Bioquímica, Instituto Politécnico Nacional, Wilfrido Massieu esq. Cda. Luis Stampa s/n, c.p. 07738 Gustavo A. Madero, Ciudad de México, México
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Involvement of monoaminergic systems in anxiolytic and antidepressive activities of the standardized extract of Cocos nucifera L. J Nat Med 2016; 71:227-237. [DOI: 10.1007/s11418-016-1053-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Accepted: 10/05/2016] [Indexed: 11/24/2022]
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Gawlik-Dziki U, Durak A, Jamioł M, Świeca M. Interactions between antiradical and anti-inflammatory compounds from coffee and coconut affected by gastrointestinal digestion – In vitro study. Lebensm Wiss Technol 2016. [DOI: 10.1016/j.lwt.2016.01.076] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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