Effect of gamma irradiation dose on postharvest quality and antioxidant activity of 'Trad Si Thong' pineapple

Conference proceedings article

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Uthairatanakij A., Jitareerat P., Srilaong V., Photchanachai S.

ผู้เผยแพร่: International Society for Horticultural Science (ISHS)

ปีที่เผยแพร่ (ค.ศ.): 2013

Volume number: 1012

หน้าแรก: 829

หน้าสุดท้าย: 836

จำนวนหน้า: 8

ISBN: 9789066057265

นอก: 0567-7572

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84889021975&partnerID=40&md5=58f17e19b281d91e16e40c61e383545c

ภาษา: English-Great Britain (EN-GB)

บทคัดย่อ

Gamma irradiation has been used widely as a quarantine treatment. We have previously reported that maturity affects quality change in irradiated 'Trad Si Thong' pineapple. Therefore, the objective of this research was to investigate the effect of gamma ray dose on postharvest quality and disorders in 'Trad Si Thong' pineapple fruit harvested at mid-maturity (commercial stage). Fruits were soaked in 500 ppm prochloraz and then dried at 22ฐC. Fruits were packed in carton boxes and irradiated with gamma rays at doses 0 (control), 0.5 and 1.0 kGy, and then stored at 13ฐC for 18 days. Physical and biochemical parameters analyzed including disease incidence, titratable acidity, total soluble solids, pulp colour, internal browning, DPPH radical-scavenging activity, total phenolic contents. Gamma irradiation did not affect internal browning, hue angle of pulp, or disease incidence. Phenolic contents in irradiated fruits were higher than in control fruit. However, the dose of gamma ray significantly affected the total soluble solids/titratable acids ratio and the antioxidant activity.

คำสำคัญ

Disease incidence, DPPH scavenging, Internal browning, Taste, Total phenolics