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Published by International Coconut Community

ISSN : 02151162 EISSN : 27218856 DOI : 10.37833/cord

Core Subject : Science, Agriculture,

Agriculture, Biological Sciences & Forestry Library & Information Science

Aims CORD aims to publish original research results and reviews on research and development. While encouraging those involved in research and developments to disseminate their finding it also assists policy makers and planners to be aware of the latest developments in the sector Scope CORD encompasses a broad range of research topics in animal sciences: seedlings and genetics, farming, harvesting, production, health, biotechnology, and production, socio-economic, and policy.

Arjuna Subject : Ilmu Pertanian dan Biologi (Semua) - Ilmu Pertanian dan Biologi (Lain-Lain)

Articles 387 Documents

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Assessment of the Diversity in Fruit Yield and Fruit Components among Sri Lanka Tall Coconut Accessions Conserved Ex-Situ Perera, K. N. S.; Herath, H. M. N. B.; Attanayaka, D. P. S. T. G.; Perera, S. A. C. N.
International Coconut Community Journal Vol 31 No 2 (2015): CORD
Publisher : International Coconut Community

Characterization of conserved coconut germplasm has been undertaken globally for identification of important features of different accessions for them to be effectively used in coconut breeding. One hundred and fifty seven accessions comprising of local and exotic material have been conserved in ex-situ field genebanks of Coconut Research Institute in Sri Lanka. The objective of this study is to quantitatively characterize nut yield and fruit components by weights among Sri Lanka Tall (Typica) coconut accessions. Twenty local tall coconut accessions were characterized for nut yield and fruit components following Bioversity International descriptors for coconut. Bunch wise nut yield was recorded in all the coconut phenotypes in the six most mature bunches in 25 randomly selected palms from each accession. Sampled nuts were scored for weights of fresh nut, husked nut, split nut and kernel and the weights of husk, water and shell of each nut were derived from the scored data. Analysis of variance by general linear models procedure and mean separation by Duncan’s multiple range test were performed in SAS v8 and principal component analysis and cluster analysis using squared Euclidean distances were performed in Minitab V17. General linear models procedure revealed significant differences for nut yield and all the fruit components at 5% probability level. Walahapitiya recorded the highest average nut yield followed by the Razeena with statistically equal performances. Clovis recorded the highest values for most of the parameters for fruit component analysis followed by the accession Margaret, grouping together in Dendogram and the scatter plot. The highest per nut kernel producer, Clovis, was followed by Margaret with statistically equal performances and this is important because kernel is the main economically important component followed by the husk. Results revealed that there is no significant correlation between nut yield and all the fruit components in tall accessions indicating the importance of taking these two parameters separately to formulate germplasm conservation strategies.

Phenotypic Variability of Ceratocystis paradoxa Isolated from North Western and Western Provinces of Sri Lanka and its Bio Control by Potential Bio-Control Agent; Trichoderma viride Jayaratne, D. L.; Dayarathna, M. T. A.
International Coconut Community Journal Vol 31 No 2 (2015): CORD
Publisher : International Coconut Community

Coconut (Cocos nucifera) is an important economic crop in Sri Lanka; one of the world's largest exporters of coir fiber and coir products. Ceratocystis paradoxa is a pathogen causing stem bleeding, leaf and fruit rot in variety of crop plants including coconut. Since C. paradoxa is associated with coconut trees, there is an opportunity for the pathogen exist in coir and coir products as well. According to the quarantine requirements, this pathogen has to be free in coir and coir products that are exported from Sri Lanka. During this study the pathogen was isolated from the samples of coir collected from different locations in North Western Province and Western Province of Sri Lanka. Colony morphology and spore morphology were compared among these isolates. Bio-control and the sensitivity of the isolates to the antagonist were evaluated against Trichoderma viride. According to the results the pathogen was present in all the samples collected from different locations of the coconut growing triangle. The isolated colonies grown on Potato Dextrose Agar (PDA) plates were white in early stage but became black, one or two days later. The growing colonies produced two asexual spores; the endoconidia and chlamydospores. Endoconidia are formed in the conidiophores making long chains. They are thin-walled cylindrical 9-12 µm x 4.8-7.2 µm in size, yet two isolated from North Western Province had a smaller width of 2.4 µm endoconidia. Chlamydospores are thick walled formed in short chains, dark color, and are mostly oval shaped, 9.6-16.8µm x 7.2-9.6µm in size, yet one isolated from North Western Province had a width of 4.8 µm. The chlamydospores are varied in morphology according to the geographical distribution of the pathogen. The variability of chlamydospore morphology predicts the genomic variability among the isolates. Biological control of C. paradoxa using T. viride was successful in all the isolates used in vitro studies. The experiments showed similar effects of T. viride on all C. paradoxa isolates as the biological control agent by killing the vegetative growth and losing the spore viability.

Antimicrobial Properties of Cocos nucifera: A Review Ramaswamy, Lalitha; Rajendran, R.; Saraswathi, U.; Sughanya, R.; Geethadevi, C.
International Coconut Community Journal Vol 31 No 1 (2015): CORD
Publisher : International Coconut Community

Coconut is known as the “wonder food” and is regarded as perfect diet because it contains almost all essential nutrients needed by the human body. The various products of coconut include tender coconut water, copra, coconut oil, raw kernel, coconut cake, coconut toddy, coconut shell and wood based products, coconut leaves, coir pith etc. Coconut is a unique source of various natural products for the development of medicines against various diseases and also for the development of industrial products. Almost all the parts of the palm have medicinal properties such as antibacterial, antifungal, antiviral, antiparasitic, antidermatophytic, antioxidant, hypoglycemic, hepatoprotective and immunostimulant property. The various medicinal properties of coconut and its products are summarized in this paper.

Formulation of Zinc Rich Coconut Nutribar Designed for Athletes Priyadarsini, K. Anusha; Ramaswamy, Lalitha
International Coconut Community Journal Vol 31 No 1 (2015): CORD
Publisher : International Coconut Community

The main dietary goal for athletes is to obtain competent nutrition to improve health, fitness and sports performance. Athletes require nutritious convenient foods like nutribars to provide instant energy and other nutrients. Zinc supplementation has been shown to increase anabolic hormone status to meet catabolic activity in athletes which is profound during training. In the current study nutribar was formulated using zinc rich food sources namely dehydrated coconut meat, cashewnuts, pumpkin seeds and cocoa. Two variations of the nutribar were prepared variation I using dark chocolate and variation II with milk chocolate. The samples were subjected to organoleptic evaluation using a 9 point Hedonic scale by semi trained panel members. The nutribars were also analyzed for selected nutrients using standardized procedures. The mean score obtained for over all acceptability was 8.0±0.632, 8.7±0.458 and 8.5±0.5 by the control, variations I and II respectively. Variations I and II had obtained a mean score of more than 8.0 for flavour and taste, while the control sample had obtained lesser scores. The zinc content of variations I and II was 7.38 mg & 5.2 mg being greater than the control.

Ecofriendly Organosolv Process for Pulping of Tender Coconut Fibre Jincy, P. J.; Ravindranath, Anita Das; Sarma, U. S.
International Coconut Community Journal Vol 31 No 1 (2015): CORD
Publisher : International Coconut Community

The huge biomass generated by vendors of tender coconut is the broken husks refuse dumped along roads and highways in Kerala. These dumps become breeding grounds for diseased causing germs and carrier mosquitoes causing threat to human life. In order to avoid pollution and find use of the rejected biomass of tender husks, a study was carried out on pulping of tender coconut husk fibre which could be used for papermaking. The optimum pulping condition, the quality of the pulp and its yield was evaluated using different variables like time and temperature. It was observed that the organosolv process could efficiently remove lignin from the tender coconut fibre yielding maximum cellulose. During the traditional pulping processes such as Kraft pulping to isolate the cellulose fibers for the production of paper, the hemicellulose and lignin fractions are degraded, limiting their valorization possibilities. Organosolv pulping has been advocated as the environmentally benign version of the kraft process. Unlike other pretreatment methods, organic solvents can easily be recycled and reused. The lignin dissolved by organosolv pulping is easily recovered by dilution and is unsulphonated and relatively unmodified. Products like handmade paper, egg cartons, handicraft items, garden articles like paper pots could be made from the organasolv pulp of tender coconut husk fibre.

Low Temperature Grafting of MMA on to Coir Fibre Lakshmi, N. S.; Babu, Sarika; Sebastian, Sumy; Ravi, P. K.
International Coconut Community Journal Vol 31 No 1 (2015): CORD
Publisher : International Coconut Community

Low temperature grafting of methyl methacrylate (MMA) on to coir fibre was carried out in aqueous medium using Potassium per sulphate (PPS) as an initiator under the catalytic influence of Ferrous ammonium sulphate (FAS). Optimization of various parameters of grafting viz. monomer, initiator and catalyst concentration, time and temperature was carried out to obtain the maximum tensile properties. Evidence of grafting was characterized from Fourier Transform Infrared spectroscopy (FTIR), Scanning Electron Microscopy (SEM) and Thermal analysis (TGA). The maximum breaking stress (BS) of control and grafted coir fibre were 213.08 and 365.00 N/mm2 respectively. Hence the percentage of improvement of grafted coir fibre was found to be 71.30%. Increase in tensile properties with maximum BS observed under monomer (25%), initiator (0.75%) and catalyst (0.75%) concentration, time (150min) and temperature (500C) respectively. The t-test and Analysis of variance (ANOVA) were studied for statistical significance and the P values obtained were less than 0.05 which revealed that the value was highly significant for the improvement of mechanical strength on coir fibre by graft Co- polymerization.

Characterisation of Silver Deposited Coir Fibers by Magnetron Sputtering Chandy, Melvi; Sarma, U. S.; Latha, M. S.; Kumar, K. Shreekrishna
International Coconut Community Journal Vol 31 No 1 (2015): CORD
Publisher : International Coconut Community

Silver thin films are extensively used due to their superior optical, electrical and antimicrobial properties. Recent development in the incorporation silver thin films on natural fibers makes it possible to utilize its excellent physical and chemical properties in the field of textiles. Present study focuses on the surface functionalization of natural coir fiber with silver thin film by magnetron sputtering. This will help to widen the use of natural coir fibers. The surface morphology of the coated coir fibers are investigated by employing a scanning electron microscope. The results show that the surface functionalization of silver-coated coir fibers are highly versatile, and it possess excellent protection against ultraviolet radiation, exhibit excellent hydrophobicity (contact angle=105.2°) and good antibacterial effects. This study demonstrates that treatment, which uses silver thin films by magnetron sputtering, is a promising method for achieving multifunctional coir fabrics.

An Investigation of the Tender Nut Potential of Diverse Coconut (Cocos nucifera L.) Varieties/Forms in Sri Lanka Perera, S. A. C. N.; Ekanayake, G. K.; Herath, H. M. N. B.
International Coconut Community Journal Vol 31 No 1 (2015): CORD
Publisher : International Coconut Community

There is a rising demand in the world for coconut water as a healthy natural beverage. Different coconut varieties are used in different countries to be processed as a natural drink. The coconut form “King coconut” has long been used in Sri Lanka as the ideal coconut variety for this purpose. However, with the expansion in the local and export beverage coconut market, the supply does not meet with the demand at present. Therefore, this study was conducted to identify potential coconut varieties/forms mainly relating to the yield of beverage. The study was conducted in the main coconut triangle and Southern Sri Lanka. Eleven coconut forms, namely, King coconut and Bothal thembili in the variety Aurantiaca, Red, Yellow, Green and Brown dwarf and Murusi in the variety Nana, Bodiri, Dothalu, and Sri Lanka tall. These are included in the variety Typica along with Nipol, which is a natural hybrid being identified to be suitable as beverage coconuts. Out of them the yielding ability was high in King coconut, Red dwarf andYellow dwarf while Bodiri, Nipol and Dothalu fared well. Many coconut forms suitable for beverage purpose were observed to be having seasonality in nut production. Ensuring adequate soil fertility and prevention of water deficit over prolonged periods were observed to help sustain yield and reduce seasonality in bunch emission. There were no large scale plantations for beverage coconuts in Sri Lanka, and the entire collection was from home gardens and very small scale holdings. It is recommended to establish medium scale holdings with coconut forms having high yield potential as identified in the current study, with proper management guidance to ensure a steady supply of beverage coconuts to the local as well as export market.

Pollen Dispersal and Pollination Patterns Studies in Pati Kopyor Coconut using Molecular Markers Larekeng, Siti Halimah; Maskromo, Ismail; Purwito, Agus; Matjik, Nurhayati Anshori; Sudarsono, S.
International Coconut Community Journal Vol 31 No 1 (2015): CORD
Publisher : International Coconut Community

Parentage analysis has been used to evaluate pollen dispersal in Kopyor coconut (Cocos nucifera L.). Investigations were undertaken to elucidate (i) the dispersal of pollen, (ii) the rate of self and out-crossing pollination, and (iii) the distance of pollen travel in Pati kopyor coconut population. The finding of this activities should be beneficial to kopyor coconut farmers to increase their kopyor fruit harvest and to support breeding of this unique coconut mutant. As many as 84 progenies were harvested from 15 female parents. As many as 95 adults coconut provenances surrounding the female parents were analyses as the potential male parents for the progenies. The adult coconut palms were mapped according to their GPS position. All samples were genotyped using six SSR and four SNAP marker loci. Parentage analysis was done using CERVUS version 2.0 software. Results of the analysis indicated that evaluated markers were effective for assigning candidate male parents to all evaluated seedlings. There is no specific direction of donated pollen movement from assigned donor parents to the female ones. The donated pollens could come from assigned male parents in any directions relative to the female parent positions. Cross pollination occured in as many as 82.1% of the progenies analyzed. Outcrossing among tall by tall (TxT), dwarf by dwarf (DxD), hybrid by hybrid (HxH), TxD, DxT, TxH, DxH, and HxD were observed. Self-pollination (TxT and DxD) occurred in as many as 17.9% of the progenies. The dwarf coconut was not always self pollinated. The presence of DxD, TxD, and HxD outcrossing was also observed. The donated pollens could come from pollen donor in a range of at least 0-58 m apart from the evaluated female recipients. Therefore, in addition to the wind, insect pollinators may have played an important role in Kopyor coconut pollination.

Fatty Acids Profile, Oxidative and Hydrolysis Stability of Virgin Coconut Oil and Palm Stearin Based Human Milk Fat Analog Karouw, Steivie; Suparmo; Hastuti, Pudji; Utami, Tyas
International Coconut Community Journal Vol 30 No 2 (2014): CORD
Publisher : International Coconut Community

The objectives of the research are to evaluate fatty acids profile, oxidative and hydrolysis stability of human milk fat (HMF) analog by using virgin coconut oil (VCO) and palm stearin as raw materials. The HMF analog was synthesized through enzymatic interesterification catalyzed by lipase from Rhizomucor miehei. The fatty acid profiles of interesterification products were monitored using gas chromatography. Oxidative stability test was carried out for up to 72 hours at 60oC. The peroxide value was measured during 0, 24, 48 and 72 hours of storage duration. Hydrolysis stability test was held for up to 8 days at room temperature. The free fatty acid content was monitored during 0, 2, 4, 6 and 8 days of storage. The results showed that the resulted HMF analog having high percentage of palmitic acid in the sn-2 position, similar to that of HMF. The palmitic acid content in the sn-2 position was around 39.71%. The MCFAs were esterified in the sn-1 and sn-3 position and the main fatty acid constituent was lauric acid of 39.37%. The obtained HMF analog was stable to oxidative and hydrolysis deterioration as indicated by the peroxide value and free fatty acid content during storage.

Page 5 of 39 | Total Record : 387

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Mufid Febrianto

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8th Floor BAPPEBTI Building Jl. Kramat Raya No. 172 Kenari, Senen, Jakarta, Indonesia 10430 Phone +62 21 3100556-557 Fax +62 21 3101007

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Mufid Febrianto

Contact Email mas.mufid@coconutcommunity.org

Phone +628111885787

Journal Mail Official journal@coconutcommunity.org

Editorial Address 8th Floor BAPPEBTI Building Jl. Kramat Raya No. 172 Kenari, Senen, Jakarta, Indonesia 10430 Phone +62 21 3100556-557 Fax +62 21 3101007

Location Kota adm. jakarta pusat, Dki jakarta INDONESIA

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Contact Name
Mufid Febrianto

Contact Email
mas.mufid@coconutcommunity.org

Phone
+628111885787

Journal Mail Official
journal@coconutcommunity.org

Editorial Address
8th Floor BAPPEBTI Building Jl. Kramat Raya No. 172 Kenari, Senen, Jakarta, Indonesia 10430 Phone +62 21 3100556-557 Fax +62 21 3101007

Location
Kota adm. jakarta pusat,

Dki jakarta

INDONESIA