บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Use of gamma-irradiation and sulphur dioxide to improve storability of two Syrian grape cultivars (Vitis vinifera).

Al-Bachir, M.

International journal of food science and technology, Volume 33, Number 6, Dec 1998. pp. 521-526.

1998

บทคัดย่อ

Use of gamma-irradiation and sulphur dioxide to improve storability of two Syrian grape cultivars (Vitis vinifera).

The feasibility of using gamma-irradiation and sulphur dioxide to control post-harvest diseases and to extend the shelf-life of table grapes in cold storage (l-2 degrees C) was studied using two cultivars of grapes local to Syria (Baladi and Helwani). The experiment took 2 years. In the first year the clusters of both cultivars were subjected to one of the following treatments, irradiation with 1.0 kGy of gamma-rays, sulphur dioxide (3 g of Na2S2O5 per 5-kg cluster) or a combination of both 1.0 kGy of gamma-irradiation and sulphur dioxide. In the second year clusters of Baladi cv. were treated with 1.5 kGy of gamma-radiation, sulphur dioxide, and a combination of 1.5 kGy of gamma-radiation and sulphur dioxide, whereas clusters of Helwani cv. were treated with 0.5 kGy of gamma-radiation, sulphur dioxide, and a combination of 0.5 kGy of gamma-irradiation and sulphur dioxide. Treated and untreated clusters were kept in cold storage. With the exception of Helwani cv. produced in the first year and treated with sulphur dioxide, the results indicated that separate application of sulphur dioxide and gamma-radiation reduced the rotting induced by Botrytis cinerea. Gamma-irradiation in combination with sulphur dioxide was the best method of preserving the two varieties of table grapes.