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Prepackaging, Storage Losses and Physiological Changes of Fresh Cauliflower as Influenced by Post Harvest Treatments

Swagatam Talukder
Department of Food Technology and Rural Industries, Agricultural Research Station, BARI, Bogra, Bangladesh.

Md. Shams-Ud-Din
Department of Food Technology and Rural Industries, Agricultural Research Station, BARI, Bogra, Bangladesh.

K.M. Khalequzzaman
Plant Pathology Division, Agricultural Research Station, BARI, Bogra, Bangladesh.

Md. Masud Alam
Spices Research Centre, BARI, Bogra, Bangladesh.

Md. Zohural Islam
Regional Cotton Research Centre, BARI, Bogra, Bangladesh.

S.M.K.E. Khuda
Department of Plant Pathology, BAU, Mymensingh, Bangladesh.

Abstract/ Executive Summary:

An experiment was conducted in the Department of Food Technology and Rural Industries, Bangladesh Agricultural University (BAU), Mymensingh, during 2002. The cauliflowers were collected after harvest from the farmer’s field of Trishal, Mymensingh, Bangladesh. Cauliflowers after transfer in the laboratory of the Department were given different post-harvest treatments.Different post-harvest treatments manifested specific attribute in maintaining physical appearance, acceptability and economic return for cauliflower. It was observed that storage in perforated polythene bag prolonged the shelf life and helped maintaining highest physical appearance, acceptability and economic return of cauliflower. Considering weight loss and economic return, the wet gunny bag treatment was also found to be acceptable. Cauliflower showed the best physical appearance, acceptability, lower weight loss and thereby rendered the highest economic return with perforated polythene bag treatment at 4 days after storage (DAS). In this case wet gunny bag was also found to be acceptable considering as physical appearance, acceptability grade and net economic return.

Keywords: Prepackaging storage losses, Physiological changes, Post harvest, Days after Storage, Cauliflower

Location: Department of Food Technology and Rural Industries, Bangladesh Agricultural University, Mymensingh

Start Date: 00-00-2002

End Date: 00-00-2002

Program Area: Postharvest and Agro-processing

Commodity: Cauliflower

Objectives:

i) To identify suitable prepackaging methods in extending the shelf life of cauliflower.

ii) To determine the post-harvest losses of cauliflower.

iii) To find out the physiological changes of the vegetables during post-harvest treatments.

Methodology:

The experiment was conducted in the Department of Food Technology and Rural Industries, Bangladesh Agricultural University (BAU), Mymensingh, during 2002. The cauliflowers were collected from the farmer’s field of Trishal, Mymensingh, Bangladesh. Cauliflowers were harvested on February 3, 2002 in the morning hours. Immediately after harvest, the cauliflowers were transferred in the laboratory of the Department of Food Technology and Rural Industries, BAU, Mymensingh for different post-harvest treatments. The prepackaging and post-harvest handling treatments were selected as control (T₁), perforated polyethylene bag (T₂), unperforated polythylene bag (T₃ ), wet gunny bag (T₅), polyester bag (T₅), and splashing of water directly on cauliflower (T₆). The experiments were carried out in RCBD with three replications. For each replication of a treatment, 3kg of freshly harvested cauliflowers were used, and the bamboo baskets containing the vegetables were kept in the floor of a laboratory room. The study was conducted during the winter season from February to March, 2002. The temperature and relative humidity of the atmosphere during the study period ranged from 16.8 to 26.9°C and 79 to 87% respectively. Data were collected mainly under laboratory conditions during the post-harvest study. Post-harvest data were collected only up to the stage of edible conditions. Visual observations on shrinkage freshness and colour changes were recorded. The price of the vegetables at the last marketable and edible stage under each treatment was recorded. A panel of local retailers (10) estimated the price of the vegetables at the stage. The estimated value of 3kg freshly harvested cauliflower and the value of the cauliflower, after loss in weight and price during storage under different treatments were determined and recorded. Recorded data were subjected to statistical analysis for mean values and test of significance. The variations among the respective data were compared following the Least Significant Difference (LSD) test (Gomez and Gomez, 1984).

Source of Information: Asian Journal of Plant Sciences Volume 2, Number 5, 438-441, 2003, ISSN 1682-3974

Article Link (Online Journal): DOI: 10.3923/ajps.2003.438.441, URL: http://scialert.net/abstract/?doi=ajps.2003.438.441

Funding Source:

Budget:

Total Budget (Tk.) :

Achievement/Findings:

It could be concluded that, Cauliflower showed the best physical appearance, acceptability, and lower weight loss and thereby rendered the highest economic return with perforated polythene bag at four days after storage (DAS). In this case wet gunny bag was also found to be acceptable, considering as physical appearance, acceptability grade and net economic return.

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