Chemical pretreatments affecting drying characteristics of Chilli (cv. Huarou Yon)

บทความในวารสาร

ผู้เขียน/บรรณาธิการ

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รายละเอียดสำหรับงานพิมพ์

รายชื่อผู้แต่ง: Phomkong W., Soponronnarit S., Thammarutwasik P.

ผู้เผยแพร่: Taylor and Francis Group

ปีที่เผยแพร่ (ค.ศ.): 2010

วารสาร: Drying Technology (0737-3937)

Volume number: 28

Issue number: 12

หน้าแรก: 1466

หน้าสุดท้าย: 1476

จำนวนหน้า: 11

นอก: 0737-3937

eISSN: 1532-2300

URL: https://www.scopus.com/inward/record.uri?eid=2-s2.0-78649471046&doi=10.1080%2f07373937.2010.482684&partnerID=40&md5=3de1234fe49e1483f2bf2244df813c0e

ภาษา: English-Great Britain (EN-GB)

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บทคัดย่อ

One- (70ฐC) and two-temperature regimes (70 and 50ฐC) were used to dry chilli (Capsicum annuum cv. Huarou Yon) using a laboratory tray dryer compared to conventional sun drying. A pretreatment was done by soaking chilli in antibrowning solutions before drying. It was found that the drying rate of chilli soaked in chemical solutions was increased and the drying period of chilli was decreased. Page's model was found to fit well with the experiment for one- and two-temperature drying using least squares analysis. The highest value of the coefficient of determination (R2>0.99), the lowest value of standard error of estimation (SEE <0.00031), and the lowest value of the mean relative deviation (P<10%) were obtained. The effective moisture diffusivities of chilli drying at 70ฐC and two-stage drying were between 6.01-7.22 ื 10-10m2/s and 3.16-3.89 ื 10-10m2/s, respectively. In contrast, the lowest value of effective moisture diffusivity of chilli was obtained by the conventional sun-drying method (0.597 ื 10-10m2/s). The highest value of moisture diffusivity was observed for chilli soaked in sodium metabisulfite (NaMS) mixed with CaCl2 solution for both one- and two-temperature regimes. The color of chilli was improved by using chemical pretreatments, in particular, chilli soaked in NaMS mixed with CaCl2 solution. ฉ 2010 Taylor & Francis Group, LLC.

คำสำคัญ

Chemical pretreatments, Chilli, Semi-empirical model