Contact time of ozonated water on microbial populations and quality changes of fresh-cut broccoli florets

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

กลุ่มสาขาการวิจัยเชิงกลยุทธ์

ไม่พบข้อมูลที่เกี่ยวข้อง

รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Renumarn P., Srilaong V., Uthairatanakij A., Kanlayanarat S., Jitareerat P.

ผู้เผยแพร่: International Society for Horticultural Science (ISHS)

ปีที่เผยแพร่ (ค.ศ.): 2013

วารสาร: Acta Horticulturae (0567-7572)

Volume number: 989

หน้าแรก: 177

หน้าสุดท้าย: 184

จำนวนหน้า: 8

ISBN: 9789066054189

นอก: 0567-7572

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-84880296950&partnerID=40&md5=dfda6c1cf188498ab737ab97d9f07b6c

ภาษา: English-Great Britain (EN-GB)

บทคัดย่อ

The use of ozonated water is a safe alternative technique for washing fresh produce, due to its lack of residue and may replace the chlorinated water technique. The contact time of ozonated water used to minimize the population of coliforms, total bacteria, and yeast and molds, and to maintain the quality of fresh-cut broccoli florets was investigated. Fresh-cut broccoli florets (Brassica oleraceae L.) were dipped in water treated with ozone gas at a concentration of 2,500 mg.h-1 for 5, 10, and 15 min, Ozone concentrations in water were then detected as follows: 0.56, 1.00, and 1.50 ppm, respectively. Fresh-cut broccoli florets dipped in tap water for 2 min were used as the control. All samples were then packaged in sealed polyvinylchloride (PVC) boxes and stored for 6 d at 4ฐC. Application of ozonated water for 15 min significantly reduced coliforms, total bacteria, and yeast and mold counts by 1.20, 2.50, and 1.80 log10 CFU.g-1, respectively, when compared with that of the control. However, ozonated water treatments impacted fresh-cut broccoli quality by decreasing the chlorophyll contents, L* value, and hue angle; however, these significant changes were not observed by consumers. The visual quality and visual color of fresh-cut broccoli evaluated by the sensory panel in both ozonated water and non-ozonated water treatments were not significantly different. ฉ ISHS 2013.

คำสำคัญ

Aqueous ozone, Minimally processed, Sanitation