บทคัดย่องานวิจัย

หมวดหมู่ : ฐานข้อมูลงานวิจัย

Development of a non-destructive method of measuring the water potential of fruit and vegetables.

Jobling, J. J.; Patterson, B. D.; Moradi, S.; Joyce, D.;

Proceedings of the Australasian postharvest horticulture conference 'Science and technology for the fresh food revolution', Melbourne, Australia, 18-22 September, 1995. Year: 1996 Pages: 477-482 Ref: 11 ref.

1996

บทคัดย่อ

Development of a non-destructive method of measuring the water potential of fruit and vegetables.

A cheap and simple nondestructive method for measuring water potential is described. Small patches (2.8 x 2.8 cm), with one side of 50- micro m-thick polyethylene, the other of microporous polyethylene and with glass fibre filter paper loaded with 200 micro l of a known concentration of KCl inside, are placed on samples with the microporous side next to the skin. The patches are weighed before and after being applied to the sample to determine water exchange between the sample and the patch. The method was tested on simulated fruits made of microporous polyethylene and the results subjected to regression analysis. The technique was also used to measure the water potentials of fresh carrots bought from a local supermarket and the same carrots after storage for 3 days at 20 deg C. The results suggested that this method could be useful for many fruits and vegetables. The advantages of the method and possible improvements in its accuracy are discussed.