Review of Cocos nucifera L. testa-derived phytonutrients with special reference to phenolics and its potential for encapsulation

  • Review Article
  • Published: 12 November 2021
  • Volume 60 , pages 1–10, ( 2023 )

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literature review on coconut

  • S. V. Ramesh   ORCID: orcid.org/0000-0002-2107-360X 1 ,
  • R. Pandiselvam 1 ,
  • P. P. Shameena Beegum 1 ,
  • R. M. Saravana Kumar 2 ,
  • M. R. Manikantan 1 &
  • K. B Hebbar 1  

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Coconut ( Cocos nucifera L.) and its value-added products are rich in medium chain triglycerides, polyphenols and flavonoids with a significant anti-oxidant potential. However, coconut and its products are underutilized for the development of nutraceuticals. Coconut testa is a brown cover of the endosperm, which is characterized with the considerable amount of phytonutrients, especially phenolics and flavonoids. The nutrient rich coconut testa is generally diverted for the production of animal feed or abandoned. Around 10–15% of the coconut kernel is removed as testa while preparing coconut desiccated powder. The coconut testa from the virgin coconut oil (VCO) industry also remains underutilized. Nevertheless, biochemical characterization of coconut testa has revealed its enormous anti-oxidant and nutraceutical potential. On the other hand there are reports describing the suitable encapsulation techniques to develop nutraceuticals from the plant-derived bioactives. In this context this review explores the prospect of utilizing the coconut testa-derived phytonutrients in developing a nutraceutical product.

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Bioactive Phytochemicals from Coconut (Cocos nucifera) Oil-Processing By-Products

literature review on coconut

Bioactive Phytochemicals from Coconut (Cocos nucifera) Oil Processing By-products

literature review on coconut

Cocoa extract with high content of flavan 3-ols, procyanidins and methylxanthines

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Ahmad M, Mudgil P, Gani A, Hamed F, Masoodi FA, Maqsood S (2019) Nano-encapsulation of catechin in starch nanoparticles: Characterization, release behavior and bioactivity retention during simulated in-vitro digestion. Food Chem 270:95–104

Article   CAS   Google Scholar  

Anselmi C, Centini M, Maggiore M, Gaggelli N, Andreassi M, Buonocore A et al (2008) Non-covalent inclusion of ferulic acid with a-cyclodextrin improves photo-stability and delivery: NMR and modeling studies. J Pharm Biomed Anal 46:645–652

Appaiah P, Sunil L, Prasanth Kumar PK, Gopala Krishna AG (2014) Composition of coconut testa, coconut kernel and its oil. J Am Oil Chem Soc 91(6):917–924

Appaiah P, Sunil L, Krishna AGK, Gurusiddaiah SK (2016) Phytochemicals and antioxidant activity of testa extracts of commercial wet and dry coconuts and cakes. Int Res J Pharm 9:9–13

Article   Google Scholar  

Arivalagan M, Bhardwaj R, Padmanabhan S, Suneja P, Hebbar KB, Kanade SR (2018a) Biochemical and nutritional characterization of coconut ( Cocos nucifera L.) haustorium. Food Chem 238:153–159

Arivalagan M, Roy TK, Yasmeen AM, Pavithra KC, Jwala PN, Shivasankara KS, Manikantan MR, Hebbar KB, Kanade SR (2018b) Extraction of phenolic compounds with antioxidant potential from coconut ( Cocos nucifera L.) testa and identification of phenolic acids and flavonoids using UPLC coupled with TQD-MS/MS. LWT 92:116–126

Azmi NAN, Hasham R, Ariffin FD, Elgharbawy AA, Salleh HM (2020) Characterization, stability assessment, antioxidant evaluation and cell proliferation activity of virgin coconut oil-based nanostructured lipid carrier loaded with Ficus deltoidea Extract. Cosmetics 7(4):83

Buamard N, Benjakul S (2017) Ethanolic coconut husk extract: In vitro antioxidative activity and effect on oxidative stability of shrimp oil emulsion. European J Lipid Sci Technol 119:700131

Carnauba RA, Chaves DF, Baptistella AB, Paschoal V, Naves A, Buehler AM (2017) Association between high consumption of phytochemical-rich foods and anthropometric measures: a systematic review. Int J Food Sci Nutr. https://doi.org/10.1080/09637486.2016.1229761

Chang SC, Cassidy A, Willett WC, Rimm EB, O’Reilly EJ, Okereke OI (2016) Dietary flavonoid intake and risk of incident depression in midlife and older women. Am J Clin Nutr 104(3):704–714. https://doi.org/10.3945/ajcn.115.124545

Chawda PJ, Shi J, Xue S, Young Quek S (2017) Co-encapsulation of bioactives for food applications. Food Qual Saf 1(4):302–309

Consoli L, Grimaldi R, Sartori T, Menegalli FC, Hubinger MD (2016) Gallic acid microparticles produced by spray chilling technique: production and characterization. LWT-Food Sci Technol 65:79–87

Conte R, Calarco A, Napoletano A, Valentino A, Margarucci S, Di Cristo F, Di Salle A, Peluso G (2016) Polyphenols nanoencapsulation for therapeutic applications. J Biomol Res Ther. https://doi.org/10.4172/2167-7956.1000139

DebMandal M, Mandal S (2011) Coconut ( Cocos nucifera L.: Arecaceae): in health promotion and disease prevention. Asian Pacific J Trop Med 4:241–247

Derman S (2015) Caffeic acid phenethyl ester loaded PLGA nanoparticles: effect of various process parameters on reaction yield, encapsulation efficiency, and particle size. https://www.hindawi.com/journals/jnm/2015/341848/

Di Mattia CD, Sacchetti G, Mastrocola D, Pittia P (2009) Effect of phenolic antioxidants on the dispersion state and chemical stability of olive oil O/W emulsions. Food Res Int 42(8):1163–1170

Działo M, Mierziak J, Korzun U, Preisner M, Szopa J, Kulma A (2016) The potential of plant phenolics in prevention and therapy of skin disorders. Int J Mol Sci 17(2):160 https://doi.org/10.3390/ijms17020160

Everitt AV, Hilmer SN, Brand-Miller JC, Jamieson HA, Truswell AS, Sharma AP, Mason RS, Morris BJ, Le Couteur DG (2006) Dietary approaches that delay age-related diseases. Clin Interv Aging 1(1):11. https://doi.org/10.2147/ciia.2006.1.1.11

Ezzat HM, Elnaggar YSR, Abdallah OY (2019) Improved oral bioavailability of the anticancer drug catechin using chitosomes: design, in-vitro appraisal and in-vivo studies. Int J Pharm 565:488–498

Gani SA, Muhammad SA, Kura AU, Barahuie F, Hussein MZ, Fakurazi S (2019) Effect of protocatechuic acid-layered double hydroxide nanoparticles on diethylnitrosamine /phenobarbital-induced hepatocellular carcinoma in mice. PLoS ONE 14(5):e0217009. https://doi.org/10.1371/journal.pone.0217009

Gao S, Hu M (2010) Bioavailability challenges associated with development of anti-cancer phenolics. Mini Rev Med Chem 10:550–567

Garcia-Larsen V, Thawer N, Charles D, Cassidy A, Van Zele T, Thilsing T, Ahlström M, Haahtela T, Keil T, Matricardi PM, Brożek G (2018) Dietary intake of flavonoids and ventilatory function in European adults: a GA 2 LEN study. Nutrients 10(1):95. https://doi.org/10.3390/nu10010095

Geetha V, Kumar GS (2021) Concentrates from tender coconut water and coconut testa beneficially modulates tissue lipid profiles in high-fat fed rats. J Food Sci Technol. https://doi.org/10.1007/s13197-021-05178-2

Geetha V, Bhavana KP, Chetana R, Krishna AG, Kumar GS (2016) Studies on the composition and in-vitro antioxidant activities of concentrates from coconut testa and tender coconut water. J Food Process Technol. https://doi.org/10.4172/2157-7110.1000588

Grgić J, Šelo G, Planinić M, Tišma M, Bucić-Kojić A (2020) Role of the encapsulation in bioavailability of phenolic compounds. Antioxidants 9(10):923. https://doi.org/10.3390/antiox9100923

Ilk S, Saglam N, Özgen M (2017a) Kaempferol loaded lecithin/chitosan nanoparticles: preparation, characterization, and their potential applications as a sustainable antifungal agent. Artif Cell Nanomed Biotechnol 45(5):907–916

Ilk S, Sağlam N, Özgen M, Korkusuz F (2017b) Chitosan nanoparticles enhances the anti-quorum sensing activity of kaempferol. Int J Biol Macromol 94:653–662

Kim B-K, Cho A-R, Park D-J (2016) Enhancing oral bioavailability using preparations of apigenin-loaded W/O/W emulsions: In vitro and in vivo evaluations. Food Chem 206:85–91

Liu Y, Sun C, Li W, Adu-Frimpong M, Wang Q, Yu J, Xu X (2019) Preparation and characterization of Syringic Acid–loaded TPGS liposome with enhanced oral bioavailability and in vivo antioxidant efficiency. AAPS PharmSciTech 20:98. https://doi.org/10.1208/s12249-019-1290-6

Mahayothee B, Koomyart I, Khuwijitjaru P, Siriwongwilaichat P, Nagle M, Müller J (2016) Phenolic compounds, antioxidant activity, and medium chain fatty acids profiles of coconut water and meat at different maturity stages. Int J Food Prop 19(9):2041–2051

Maqsoudlou A, Assadpour E, Mohebodini H, Jafari SM (2020) Improving the efficiency of natural antioxidant compounds via different nanocarriers. Adv Colloid Interface Sci 278:102122

Marasinghe SS, Marikkar JN, Yalegama C, Wimalasiri S, Seneviratne G, Weerasooriya R, Liyanage R (2019) Comparison of inter-varietal differences in chemical composition and nutritional properties of coconut testa. J Natl Sci Found 47(3):349–356

CAS   Google Scholar  

Marikkar JMN, and Madhrapperuma WS (2012) Coconut. In :Tropical and subtropical fruits: postharvest physiology processing and packaging, Muhammed Siddiq (Ed.). p 159 Wiley, Ames, Iowa, USA

Marikkar N, Marasinghe S, Yalegama C, and Hewapathirana D (2021) The physical and functional properties of partially defatted coconut testa flour. CORD doi: https://doi.org/10.37833/cord.v37i.424

Merlin JP, Shibli SMA, Sebeela M (2012) Ferulic acid loaded Poly-d, l-lactide-co-glycolide nanoparticles: systematic study of particle size, drug encapsulation efficiency and anticancer effect in non-small cell lung carcinoma cell line in vitro. Biomed Prev Nutr 2:69–76

Miranda AM, Steluti J, Fisberg RM, Marchioni DM (2017) Association between coffee consumption and its polyphenols with cardiovascular risk factors: a population-based study. Nutrients. https://doi.org/10.3390/nu9030276

Ojha SB, Roy S, Das S, Dhangadamajhi G (2019) Phytochemicals screening, phenolic estimation and evaluation for anti-oxidant, anti-inflammatory and anti-microbial activities of sequentially Soxhlet extracted coconut testa. Food Nutr Sci 10(08):900

Olatunde OO, Benjakul S, Vongkamjan K, Amnuaikit T (2019) Liposomal encapsulated ethanolic coconut husk extract: Antioxidant and antibacterial properties. J Food Sci 84(12):3664–3673

Olatunde OO, Benjakul S, Vongkamjan K (2020) Cold plasma combined with liposomal ethanolic coconut husk extract: A potential hurdle technology for shelf-life extension of Asian sea bass slices packaged under modified atmosphere. Innov Food Sci Emerg Technol 65:102448. https://doi.org/10.1016/j.ifset.2020.102448

Olga G, Styliani C, Ioannis RG (2015) Coencapsulation of ferulic and gallic acid in hp-b-cyclodextrin. Food Chem 185:33–40

Panwar R, Raghuwanshi N, Srivastava AK, Sharma AK, Pruthi V (2018) In-vivo sustained release of nanoencapsulated ferulic acid and its impact in induced diabetes. Mater Sci Eng C 92:381–392

Pattnaik M, Pandey P, Martin GJ, Mishra HN, Ashokkumar M (2021) Innovative technologies for extraction and microencapsulation of bioactives from plant-based food waste and their applications in functional food development. Foods 10(2):279. https://doi.org/10.3390/foods10020279

Quirós-Sauceda AE, Palafox-Carlos H, Sáyago-Ayerdi SG, Ayala-Zavala JF, Bello-Perez LA, Alvarez-Parrilla E, De La Rosa LA, González-Córdova AF, González-Aguilar GA (2014) Dietary fiber and phenolic compounds as functional ingredients: Interaction and possible effect after ingestion. Food Funct 5:1063–1072

Quispe NB, Chaves MA, Dos Santos AF, Bastos TD, Castro SS (2020) Microencapsulation of virgin coconut oil by spray drying. Brazilian J Dev 6(1):1510–1529

Rajamohan T, Archana U (2018) Nutrition and health aspects of coconut. In: Nampoothiri K, Krishnakumar V, Thampan P, Nair M. (eds). The Coconut Palm (Cocos nucifera L) - research and development perspectives. Springer, Singapore. https://doi.org/10.1007/978-981-13-2754-4_15

Ramesh SV, Pandiselvam R, Thushara R, Manikantan MR, Hebbar KB, Beegum S, Mathew AC, Neenu S, Shil S (2020) Engineering intervention for production of virgin coconut oil by hot process and multivariate analysis of quality attributes of virgin coconut oil extracted by various methods. J Food Process Eng. https://doi.org/10.1111/jfpe.13395

Ramesh SV, Krishnan V, Praveen S, Hebbar KB (2021) Dietary prospects of coconut oil for the prevention and treatment of Alzheimer’s disease (AD): a review of recent evidences. Trends Food Sci Technol 112:201–211. https://doi.org/10.1016/j.tifs.2021.03.046

Razak DLA, Jamaluddin A, Rashid NYA, Sharifudin SA, Long K (2016) Comparative study of antioxidant activities, cosmeceutical properties and phenolic acids composition of fermented rice bran and coconut testa. Jurnal Teknologi 78:29–34

Google Scholar  

Saloko S, Darmadji P, Setiaji B, Pranoto Y, Anal AK (2013) Encapsulation of coconut shell liquid smoke in chitosan-maltodextrin based nanoparticles. Int Food Res J 20(3):1269–1276

Seneviratne KN, HapuarachchI CD, Ekanayake S (2009) Comparison of the phenolic-dependent antioxidant properties of coconut oil extracted under cold and hot conditions. Food Chem 114:1444–1449

Seneviratne KN, Prasadani WC, Jayawardena B (2016) Phenolic extracts of coconut oil cake: a potential alternative for synthetic antioxidants. Food Sci Technol 36(4):591–597

Srivastava Y, Semwal AD, Majumdar A (2016) Quantitative and qualitative analysis of bioactive components present in virgin coconut oil. Cogent Food Agri 2(1):1164929. https://doi.org/10.1080/23311932.2016.1164929

Statista (2018) Coconut production worldwide from 2000 to 2016 (in million metric tons).  https://www.statista.com/statistics/577497/world-coconut-production .> Accessed 12 May 2018

Statista (2021) Coconut production worldwide from 2000 to 2019 (in million metric tons). https://www.statista.com/statistics/577497/world-coconut-production/.Data accessed on February 5, 2021

Tommasini S, Calabro ML, Stancanelli R, Donato P, Costa C, Catania S, Villari V, Ficarra P, Ficarra R (2005) The inclusion complexes of hesperetin and its 7-rhamnoglucoside with (2-hydroxypropyl)-b-cyclodextrin. J Pharm Biomed Anal 39:572–580

Tresserra-Rimbau A, Lamuela-Raventos RM, Moreno JJ (2018) Polyphenols, food and pharma. current knowledge and directions for future research. Biochem Pharmacol 156:186–195

Xu C, Guan S, Wang B, Wang S, Wang Y, Sun C, Ma X, Liu T (2018) Synthesis of protocatechuic acid grafted chitosan copolymer: Structure characterization and in vitro neuroprotective potential. Int J Biol Macromol 109:1–11. https://doi.org/10.1016/j.ijbiomac.2017.12.019

Yee Kuen C, Galen T, Fakurazi S, Othman SS, Masarudin MJ (2020) Increased cytotoxic efficacy of protocatechuic acid in A549 human lung cancer delivered via hydrophobically modified-chitosan nanoparticles as an anticancer modality. Polymers 12(9):1951. https://doi.org/10.3390/polym12091951

Zhang Y, ZhengY DK, Gui Q (2016) Preparation, antioxidant activity and protective effect of coconut testa oil extraction on oxidative damage to human serum albumin. Int J Food Sci Technol 51(4):946–953

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Acknowledgements

The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper. The authors gratefully acknowledge the funding for this study from Indian Council of Agricultural Research (ICAR) (ICAR-CPCRI Project No: 1000766014)

Indian Council of Agricultural Research (ICAR) (ICAR-CPCRI Project No: 1000766014).

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S. V. Ramesh, R. Pandiselvam, P. P. Shameena Beegum, M. R. Manikantan & K. B Hebbar

Department of Biotechnology, Saveetha School of Engineering, Saveetha University, Chennai, Tamil Nadu, 602105, India

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Ramesh, S.V., Pandiselvam, R., Shameena Beegum, P.P. et al. Review of Cocos nucifera L. testa-derived phytonutrients with special reference to phenolics and its potential for encapsulation. J Food Sci Technol 60 , 1–10 (2023). https://doi.org/10.1007/s13197-021-05310-2

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Published : 12 November 2021

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DOI : https://doi.org/10.1007/s13197-021-05310-2

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Coconut oil intake and its effects on the cardiometabolic profile - A structured literature review

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  • 1 School of Medicine, Federal University of Uberlandia (UFU), Uberlandia, Minas Gerais, Brazil. Electronic address: [email protected].
  • 2 Tier 1 Health and Wellness, Center for Research, Chattanooga, TN, United States.
  • 3 Texas A&M University, Health and Kinesiology, College Station, TX, United States.
  • 4 CBIOS (Research Center for Biosciences & Health Technologies), Universidade Lusófona de Humanidades e Tecnologias, Campo Grande 376, 1749-024 Lisboa, Portugal.
  • PMID: 31707063
  • DOI: 10.1016/j.pcad.2019.11.001

In recent years, health professionals and laypersons have disseminated misinformation regarding the consumption of coconut oil. Those encouraging the supplementation of coconut oil argue that it provides health benefits and protective cardiovascular effects. Our article examines the effects of coconut oil intake on the cardiometabolic profile by exploring various lipid indices, as well as potential non-lipid effects, such as weight loss. The majority of randomized controlled trials show that coconut oil intake or its supplementation increases low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDLC), and total cholesterol when compared with other vegetable oils. Lauric acid, a medium-chain fatty acid and the main constituent of coconut oil, increases LDL-C and HDL-C concentrations, since it plays a main role as a substrate for apolipoprotein (apo)A1 and apoB synthesis, which are the key molecules in HDL-C and LDL-C particles, respectively.Despite some findings demonstrating an increase in HDL-C, definitive long-term clinical trials are imperative to ascertain whether this effect is clinically relevant. In addition, coconut oil intake has failed as a weight loss strategy and should not be considered as a supplementation strategy to increase satiety and/or thermogenesis.If one desires to include coconut oil in the diet, then we suggest that it should be limited and encompassed within the current recommendations of SFA intake, which are up to 10% of total caloric intake.

Keywords: Coconut oil; Cocos nucifera; HDL; Lauric acid; Lipids.

Copyright © 2019 Elsevier Inc. All rights reserved.

Publication types

  • Cardiovascular Diseases / epidemiology
  • Cardiovascular Diseases / prevention & control
  • Coconut Oil / administration & dosage*
  • Coconut Oil / adverse effects
  • Diet, Healthy*
  • Dietary Fats / administration & dosage*
  • Dietary Fats / adverse effects
  • Dietary Fats / blood
  • Energy Intake
  • Nutritive Value*
  • Obesity / diet therapy
  • Obesity / epidemiology
  • Obesity / physiopathology
  • Randomized Controlled Trials as Topic
  • Recommended Dietary Allowances
  • Risk Factors
  • Weight Loss
  • Dietary Fats
  • Coconut Oil

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