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Nutritive Value, Shelf Life and Yield Potential of Tropical Strawberry

Prof. Dr. M. Mofazzal Hossain
Professor & Director (Research)
Department of Horticulture Bangabanbhu Sheikh Mujibur Rahman Agricultural University (BSMRAU) Gazipur-1706.

Abstract/ Executive Summary:

Two experiments were carried out both at the research field and laboratory of the Department of Horticulture, BSMRAU, Gazipur, during November 2011 to April 2012 to study the yield performance, nutritional quality and shelf life of strawberry genotypes at different post harvest temperature and package management. The results revealed that the highest yield of strawberry per hectare (12.94 t) was obtained by the genotype V₅ (Festival) and the lowest (6.15 t) was obtained with the genotype V4 (BADC Strawberry). Under fresh condition highest ascorbic acid (45.76 mg/100g) was obtained by V₁ (Rabi-3) and highest B-carotene (15.09 IU/100g) by V₅ (Festival). Highest content (6.373 g/100g) of reducing sugar and non reducing sugar (2.947 g/100g) was found in V₂ (Camarosa) and V₅(Festival) respectively. Maximum Ca (0.480%) in V₄ (BADC Strawberry), Fe (93.50 ppm) in V₁ (Rabi-3), P (0.081%) and K (0.854%) in V₃ (BARI Strawberry-1) was recorded. Polyethylene package at 4⁰C proved to be superior to others in all respects. Highest shelf life (47.00 days) and ascorbic acid (42.76 mg/100g) after four days of storage was obtained by V₂ (Camarosa) in this condition.

Keywords: Srawberry, Nutritive value, Shelf life, Yeild

Location: Department of Horticulture, (BSMRAU), Gazipur-1706.

Start Date: 01-07-2011

End Date: 31-06-2012

Program Area: Quality and Nutrition

Commodity: Strawberry

Objectives:

1. To determine the nutritional quality of selected germplasm and presently recommended varieties. 2. To evaluate the shelf-life of strawberry at different temperature and packaging conditions. 3. To obtain the post harvest loss of vitamins and other nutrients in strawberry.

Methodology:

Expt.1. Performance of different genotypes in strawberry Treatment: V1, V2, V3, V4, V5 and V6 Unit plot size: 6mX1.2m, Spacing: 60 cm X 30 cm, Design: RCBD, Replication: 3. Data on yield and yield contributing characters such as no. of fruits/plant, wt. of individual fruits/plant, no. of branches/plant, no. of leaf/plant and canopy size, yield/plant (g), yield/plot (kg) and yield (t/ha) etc. will be recorded and the produced fruits will be stored in different conditions. Nutritional quality will be determined in the laboratory following the standard method. The methods utilized for the estimation of moisture, dry matter, TSS, titrable acidity, total insoluble solid, carotene and ash where those of (A.O.A.C., 1965) while Lane and Eynon (1923) method will be used for the determination of total sugar, reducing sugar and non-reducing sugar. The ascorbic acid will be estimated according to the 2,6- dichlorophenol indophenols visual titration method of A.O.V.C., (1966) while carotene will be determined photometrically. The pH will be determined with a pH meter. Fruit taste will be assessed organoleptically through a taste testing panel composed of 10 members from male and female students of Department of Horticulture. Expt. 2. Determination of nutritive value and shelf life of six genotypes of strawberry A. The following vitamins and minerals will be determined: Carotene, Ascorbic acid and sugar Calcium, Iron and phosphorus Design: CRD, Replication: 10 B. Shelf life I. Storage condition Treatments: 1. Control (Room condition 25^oC) 2. Refrigerated condition (4^oC and Moderate condition (12^oC) Design: CRD, Replication 5 II. Packaging Treatments: I Polyethylene package & Plastic package Design: CRD, Replication 4 Data to be collected: Initial wt. and final wt. and no. of fruit, weight loss, rottage loss,Vitamin-C content, Taste, colour and texture at 2 days interval. Data analysis: All the statistical analysis will be performed by using MS excel and MSTAT-C software and mean separation will be done using DMRT (Steel et al., 1960).

Source of Information: Research Report, Personal contact with Principal Investigator

Article Link (Online Journal):

Funding Source:

1.	Budget: 90,000.00
2.	Budget: 90,000.00

Total Budget (Tk.) : 90,000.00

Achievement/Findings:

• The highest yield of strawberry per hectare (12.94 t) was obtained by the genotype V₅ (Festival) and the lowest (6.15 t) was obtained with the genotype V₄ (BADC Strawberry). • Under fresh condition highest ascorbic acid (45.76 mg/100g) was obtained by V₁ (Rabi-3) and highest B-carotene (15.09 IU/100g) by V₅ (Festival). • Highest content (6.373 g/100g) of reducing sugar and non-reducing sugar (2.947 g/100g) was found in V₂ (Camarosa) and V₅ (Festival) respectively. • Maximum Ca (0.480%) in V₄ (BADC Strawberry), Fe (93.50 ppm) in V₁ (Rabi-3), P (0.081%) and K (0.854%) in V₃ (BARI Strawberry-1) was recorded. • Polyethylene package at 4⁰C proved to be superior to others in all respects. • Highest shelf life (47.00 days) and ascorbic acid (42.76 mg/100g) after four days of storage was obtained by V₂ (Camarosa) in this condition.

Knowledge Management: Report/Proceedings