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Saravanan C., Priya B.*, Asir Bradley S. and Uma Sundaram
International Journal of Pharmaceutical Sciences and Research , 2012,
Abstract: The phytochemical constituents of Borassus flabellifer was identified and evaluated the antibacterial activity of the acetone, benzene, chloroform, ethanol and methanol extracts. A phytoconstituent analysis of alkaloids, glycosides, terpenoids, steroids, flavonoids, tannins, phenols and saponins were performed on the various solvent extracts. Antibacterial activity was analyzed by agar well diffusion method against five pathogenic microorganisms, E. coli, S. aureus, K. pneumonia, P. aeruginosa and B. subtilis. The maximum zone of inhibition was exhibited for E.coli (14mm); P. aeruginosa (13mm) and B. subtilis (11mm)against compared to tested micro organisms. The methanolic extract of the palm root has showed consistently significant inhibitory activity on different bacterial species tested. Furthermore, identification of bioactive compounds will be analyzed.
Potential use of Lactobacillus casei TISTR 1500 for the bioconversion from palmyra sap and oil palm sap to lactic acid
Chooklin,Supasit; Kaewsichan,Lupong; Kaewsrichan,Jasadee;
Electronic Journal of Biotechnology , 2011,
Abstract: lactic acid is a product that finds several applications in food, cosmetic, pharmaceutical and chemical industries. the main objective of this work is to evaluate potential use of the sap from palmyra (borassus flabellifer linn.) and oil palm (elaeis guineensis) as substrate for lactic acid production by lactobacillus casei tistr 1500. the effects of acid hydrolysis, ph control and nutrient supplement of palmyra sap and oil palm sap on fermentation performance were investigated. it was found that lactic acid fermentation using palmyra sap was not significantly affected by either acid hydrolysis or ph control. the addition of mrs increased biomass and product yield. the final lactic acid concentration, dry cell weight and productivity were increased by increasing the total sugars of palmyra sap concentrations up to 134.0 g l-1. the kinetic parameters for the palmyra sap at 134.0 g l-1 total sugars were calculated to be of: specific growth rate (μ) 0.05 h-1, the maximum productivity (rm) 2.02 g lactic acid l-1 h-1, cellular yield coefficient (yx/s) 0.20 g cell g-1 sugar, and lactic acid yield (yp/s) 0.78 g g-1. when oil palm sap was used as carbon source for l. casei tistr 1500, ph control did not significantly affect lactic acid production. the addition of mrs medium into oil palm sap improved the biomass and the product yield for which the lactic acid production in static flask at 37oc and ph 5.5 using 20 g l-1 of total sugars was improved to be of 0.55 g l-1 h-1. oil palm sap could be served as a good potential source of raw materials for efficient production of lactic acid by l. casei tistr 1500.
Inhibitory Action of Borassus Flabellifer Linn. (Palmyra Palm) Shell Extract on Corrosion of Mild Steel in Acidic Media  [cached]
P. R. Vijayalakshmi,R. Rajalakshmi,S. Subhashini
Journal of Chemistry , 2010, DOI: 10.1155/2010/453694
Sensory analysis of the fruit juice of palmyrah palm (Borassus aethiopum): A decision making tool.
EK Koffi, P Ezoua, D Sidibe, NG Agbo
African Journal of Food, Agriculture, Nutrition and Development , 2010,
Abstract: Systematic training of panelists to generate terms that describe and quantify the sensory characteristics of Borassus juice enabled the profiling of the product. The experimental study was conducted at the University of Cocody (Ivory Coast). Sixteen students and employees were selected as judges based on willingness to consume Borassus juices and no history of negative allergic reactions. The judges were further screened using triangle tests and ability to determine varying intensities of selected descriptors for tropical fruit juices (sweetness, bitterness, sourness, saltiness). The training sessions were held twice a week for two months. Reference standards for each descriptor as well as unstructured scaling consisting of a horizontal 15 cm line with anchor points were used. A consumer test using a three point acceptability scale (tastes great, acceptable, unacceptable) was used. Bitterness was the dominant descriptor, followed by sweetness. Saltiness and sourness had minimum contribution to the taste of the juices. Sugars/ bitter compounds combination play an important role in the flavour characteristics and in the consumer acceptability. Free sugars were determined by HPLC in the extracted Borassus juice. The dominant sugar was sucrose (47 mg/ml) followed by glucose (24.6 mg/ml) and fructose (16.5 mg/ml). A glucose / fructose ratio close to 1, and a glucose+fructose/ sucrose ratio close to 1 both of which are good indexes of authenticity of Borassus juices. Majority of the consumer panel (93%) found the juice acceptable or excellent (tastes great). The results represent a major breakthrough for the improvement of the incomes of poor populations in savannah regions of Western Africa via the creation of juice processing units. Juice processing is a better alternative than wine making because sap harvesting methods leads to the death of the palm. The populations of Borassus are highly endangered due to the lack of reforestation of the degraded areas. Preservation of the biodiversity in rural areas will benefit from this research.
Variability and association among fruit traits in palmyrah (Borassus flabellifer L.)
V. Ponnuswami* and S. Chitra
Electronic Journal of Plant Breeding , 2011,
Abstract: One hundred and twenty nine palmyrah genotypes were collected from various parts of India and Fruit characterization wasdone.. Variability parameters indicated that high variability exist for fruit weight (g) and weight of shreds (g). Moderatevariability was observed for weight of seed. Low variability was observed for fruit length (cm), fruit diameter (cm), length ofseed (cm), circumference of seed and weight of flesh (g). Hence all the characters except seed weight are good for furtherimprovement through selection. The correlation studies for eight fruit characters indicated that all traits namely fruit weight (g),fruit length (cm), fruit diameter (cm), weight of seed (g), length of seed (cm), circumference of seed, weight of flesh (g) andweight of shreds (g) had significant and positive correlation. Hence simultaneous selection is possible for all these traits inPalmyrah.
Genotypic variation and hierarchical clustering of Palmyrah (Borassus flabellifer L.)
V. Ponnuswami and S. Chitra
Electronic Journal of Plant Breeding , 2011,
Abstract: The genotypic divergence and hierarchical clustering based on morphological, fruit and seed traits was studied in 48 palmyrah genotypes of diverse genetic background. Significant differences were recorded for morphological, fruit and seed characters among genotypes. Highest variability was observed in fruit weight followed by Neera yield and Tree height. Multivariate hierarchical cluster analysis was done to classify genotypes according to their degree of similarity in morphological, fruit seed and pooled traits.
Pulping and paper properties of Palmyra palm fruit fibers
Waranyou Sridach
Songklanakarin Journal of Science and Technology , 2010,
Abstract: Palmyra palm fruit fibers have the properties to be used as an alternative raw material of cellulosic pulps for papermaking.Acid and alkali pulping were investigated by using nitric acid and caustic soda on a laboratory scale, with the purpose of producing printing or writing grade pulp. The chemical composition of fiber strands from palmyra palm fruits were examined, such as holocellulose, cellulose, pentosan, lignin and extractives. The yields of acid and soda pulps were below 40%. The main physical and mechanical properties of hand sheets produced from acid and soda processes were evaluated on 80 g/m2 test sheets as functions of the following parameters: tensile index, tear index, and brightness. The mechanical properties of soda pulps were developed by twin-roll press while it was not necessary to fibrillate acidic pulps through the beating step. The soda pulp sheets presented a lower brightness than that of acidic pulp sheets. The mechanicaland physical properties of the acidic and alkaline pulps verified that they were of an acceptable quality for papermaking.
TEKNOLOGI PENGOLAHAN GULA COKLAT CAIR NIRA SIWALAN (Borassus flabellifer L.) [Brown Sugar Syrup Processing from Siwalan Palm Saps (Borassus flabellifer L.)]  [cached]
Nurud Diniyah1)*,Simon Bambang Wijanarko2),Hari Purnomo3)
Jurnal Teknologi dan Industri Pangan , 2012,
Abstract: The aims of this research were to find out the effect of different levels of Brix degree in vacuum method to the sugar products and to compare the vacuum evaporation with traditional method (open pan) to the quality of Siwalan sugar products. Randomized Completed Design was used in the first phase of experiment with different levels of Brix content (i.e.60, 65, 70 and 75°Brix), as single factor and each treatment was replicated 6 times. In the second phase of experiment, t-test was used to compare the different methods of cooking techniques, vacuum evaporation and traditional method and each treatment was replicated 10 times. The results showed that in the first phase, 75oBrix was observed as the optimum product and characterised by 34.55 of brightness (L*), 8.83 of redness (a*), 22.35 of yellowness (b*), 6.63 of pH, 6.99 x 103cPof viscosity, 7.73% of reducing sugar, and organoleptic scoring were 107 for viscosity, 108 for colour, 110 for taste, 98 for aroma. At the second stage, it can be concluded that Siwalan sugar product produced using vacuum method gave a better quality compound to the traditional one (open pan).
Removal of hexavalent chromium from aqueous solution using activated carbon derived from palmyra palm fruit seed
A. Kannan, S. Thambidurai
Bulletin of the Chemical Society of Ethiopia , 2008,
Abstract: In this study, removal of chromium(VI) from aqueous solutions by Palmyra palm fruit seed carbon (PPFSC) and commercial activated carbon (CAC) was investigated. The metal adsorption capacity has been studied as a function of contact time, pH and carbon dosage. The adsorption yields increased with the increasing of adsorbent dosage and contact time, and subsequently reached the equilibrium. The suitability of the Freundlich and Langmuir models were also investigated for each chromium sorbent system. In order to understand the reaction mechanism, kinetic data has been studied using pseudo first order rate equation. The Lagergren’s constants were calculated for different initial concentrations of metal ions. The chromium(VI) ions could be rapidly removed from the sorbents by treatment with HCl acid and at the same time the regenerated sorbent could be used again to adsorb heavy metal ions. The suitability of this material for treatment of tannery wastewater was also examined. KEY WORDS: Adsorption; Chromium(VI) removal; Palmyra palm fruit seed carbon; Regeneration; Langmuir and Freundlich isotherm; Pseudo first order kinetics Bull. Chem. Soc. Ethiop. 2008, 22(2), 183-196.
In silico characterization and expression analyses of sugarcane putative sucrose non-fermenting-1 (SNF1) related kinases
Carraro, Dirce Maria;Lambais, Marcio R.;Carrer, Helaine;
Genetics and Molecular Biology , 2001, DOI: 10.1590/S1415-47572001000100006
Abstract: sucrose non-fermenting-1-related protein kinases (snrks) may play a major role in regulating gene expression in plant cells. this family of regulatory proteins is represented by sucrose non-fermenting-1 (snf1) protein kinase in saccharomyces cerevisiae, amp-activated protein kinases (ampks) in mammals and snrks in higher plants. the snrk family has been reorganized into three subfamilies according to the evolutionary relationships of their amino acid sequences. members of the snrk subfamily have been identified in several plants. there is evidence that they are involved in the nutritional and/or environmental stress response, although their roles are not yet well understood. we have identified at least 22 sugarcane expressed sequence tag (est) contigs encoding putative snrks. the amino acid sequence alignment of both putative sugarcane snrks and known snrks revealed a highly conserved n-terminal catalytic domain. our results indicated that sugarcane has at least one member of each snrk subfamily. expression pattern analysis of sugarcane est-contigs encoding putative snrks in 26 selected cdna libraries from the sugarcane expressed sequence tag sucest database has indicated that members of this family are expressed throughout the plant. members of the same subfamily showed no specific expression patterns, suggesting that their functions are not related to their phylogenic relationships based on n-terminal amino acid sequence phylogenetic relationships.
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