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Study the Assessment of Physico-chemical Properties of a Newly Released Corchorus Olitorius Jute Variety 0-72

Md. Khorshed Alam
Scientific Officer
Bangladesh Jute Research Institute

Mubarak Hossen
Senior Scientific Officer
Chemistry Division, BJRI, Dhaka

Ayesha Khatton
Senior Scientific Officer
Chemistry Division, BJRI, Dhaka

Nayer Sultana
Senior Scientific Officer
Pilot Plant and Processing Division, BJRI, Dhaka

Abstract/ Executive Summary:

The study was conducted at the Textile Physics Division and Chemistry Division of Bangladesh Jute Research Institute, Dhaka, Bangladesh during 2015. The assessment of physico-chemical properties of the variety O-72 was blue seeded with lower percentage of oil content than naturally brown seeded but saponification value was higher, Brightness (23.94%), fineness (38.60%) and bundle strength (06.20 lb/mg) index were very much comparable to bleached jute samples using 6% hydrogen peroxide. Cellulose content was 65.68% as well as lignin and hemicelluloses content were 13.95% and 17.94% respectively which were more prominent than O-9897 varieties of jute fibres.

Keywords: Brightness, Whiteness, Bundle strength, Cellulose and Lignin

Location: Chemistry Division, Bangladesh Jute Research Institute, Manik Mia Avenue, Dhaka-1207, Bangladesh.

Start Date: 01-01-2014

End Date: 01-01-2016

Program Area: Physical and Mechanical Properties

Commodity: Jute

Objectives:

Studies of intrinsic and extrinsic properties, micro and macro properties of jute and jute products and their modification with physical, chemical, biotechnological and other possible means.

Methodology:

Physical parameters Reed fibre length, brightness/whiteness index, bundle strength fineness etc. were determined according to standard methods followed by BJRI. Bundle strength test: To measure bundle strength a bundle of fibre of each sample was combed to make the fibres parallel and suitable for carrying out the test. Fineness test: To measure fineness of the fibre, samples were inserted through a 6 inches length sample holder tightly and the elongated fibres were cut at the edge of the sample holder by a cutting machine. Then weighed as 54.2g and again inserted into a 3 inches length sample holder. After cutting the elongated fibres from both ends of the holder, it was used to measure fibre fineness and then again weighed and calculated the actual fineness. Chemical parameters Chemical parameters were taken on the basis of moisture correction it was very much essential to estimate correct results. Percentage of moisture content was determined by standard method (Panto et al., 1969). Pectin content was determined by boiling the sample with oxalic acid and ammonium oxalate solution. Fatty/oily materials were extracted from jute seed and jute fibre with petroleum ether in a sox let apparatus (Kulkarni and Roy, 1973). The content of alpha cellulose and hemicellulose was determined by the TAPPI method. Lignin content was determined by the TAPPI sulphuric acid standard method (Timell, 1957). Ash content was determined by ashing the sample in Muffle furnace in a porcelain crucible according to a standard method (Khuda et al., 1976). Bleaching treatment was done by the following way: • Scouring has been carried out by heating jute sample at 80-900C with 8-10 g/l sodium carbonate solution containing slight amount of wetting agent for half an hour. • Bleaching was done with hydrogen peroxide by using Hydrogen peroxide = 6% on the weight of jute sample. Sodium silicate = 3%, Sodium carbonate = 3%, Wetting agent = 0.1%, PH = 1011. Time = one hour, Temperature = Up to boiling after b leaching treatment jute sample was washed and air dried.

Source of Information: Int. J. Sustain. Agril. Tech. 12(3): 01-04, March 2016 Int. J. Sustain. Agril. Tech. 12(3): 01-04, March 2016 An online Journal of “G -Science Implementation & Publication”, website: www.gscience.net

Article Link (Online Journal): IJSAT: ISSN 1815-1272, Volume 12 Issue 3 2016 Title code: IJSAT/160301 1 An online Journal of “G -Science Implementation & Publication”, website: www.gscience.net

Funding Source:

1. Bangladesh Agricultural Research Council

Budget: 2,50,000.00

Total Budget (Tk.) :

Achievement/Findings:

The present study focused on the physico-chemical properties of newly released jute variety O-72. From the result it is clear that physical parameters of O-72 fibre have been found better quality in regards of strength, fineness and whiteness. On the other hand chemical properties is also an important factor for jute fibre where alpha cellulose is the most important chemical constituent which was higher in the O-72 fibre than other types of jute fibre. From the overall discussion it can be concluded that the variety of O-72 fibre is superior (i.e. better quality) considering the good looking and maximum amount of fibrous materials which are most important in the field of diversified uses of jute fibre.

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