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Retting of Green Ribbons by Using Extract of Different Agro-wastes for the Acceleration of Retting Speed

M. Shamsul Haque
Principal Scientific Officer
Fibre Quality Improvement Division, Bangladesh Jute Research Institute, Manik Mia Avenue, Dhaka-1207.

M. Asaduzzaman
Chief Scientific Officer (CC)
Fibre Quality Improvement Division, Bangladesh Jute Research Institute, Manik Mia Avenue, Dhaka-1207.

Abstract/ Executive Summary:

Jute retting is a microbiological process accomplished in the different sources of water where microbes of water and jute plants work together on the bark of the plant and thereby loosen the bark, separated and extracted fibres manually. It is a traditional method of jute retting which takes longer period and requires sufficient water. The experiment was undertaken for reducing retting time using different agro-wastes as retting accelerator for the improvement of fibre quality in the year of 2004. Past research revealed that chemical retting is effective and produce quality fibre, but extensive and it is not economically viable at farmers’ level. Agro-wastes was prepared by burning ‘Shimul’ flower made into ashes. The fresh green ribbons were boiled in water mixed with ‘Shimul’ flower ashes of different percentages viz. 2%, 4%, 6%, and 8% of green ribbon weight at a temperature of 100°C for four hours. It was found that out of four percentages of shimul flower ashes tested only 8% of shimul flower ash boiled with green jute ribbons in water produced C grade fibre. Similarly 6% produced SMR fibre and other two were unretted.

Keywords: Green ribbons, Extract, Agro-wastes, Acceleration, Retting speed

Location: Central Research Station, Dhaka

Start Date: 12-03-2004

End Date: 30-12-2004

Program Area: Postharvest and Agro-processing

Commodity: Jute

Objectives:

To accelerate the jute retting speed by using agro-wastes for improvement of fiber quality.

Methodology:

Firstly, jute plants (0-9897 and CVL-1) were grown in JAES, Jsgir, Manikgonj. Plants were harvested at budding stage and fibres are extracted. Some barks were dried for preparing dry ribbon. Both dry and green ribbons were retted in different temperature with water and different agro-wastes (ashes of banana stem and ashes of simul flower) at different ratios and different time interval. Produced fibres were assessed in respect of quality.

Source of Information: Annual report 2004-2005

Article Link (Online Journal):

Funding Source:

1. Government

Budget: Two thousand only

Total Budget (Tk.) : Two thousand only

Achievement/Findings:

It was found that out of four percentages of shimul flower ashes tested only 8% of shimul flower ash boiled with green jute ribbons in water produced C grade fiber. Similarly 6% produced SMR fibre and other two were unretted.

Knowledge Management: Report/Proceedings, Booklet/Leaflet