Bulk Properties of Red Pepper Powder by Drying Method and Variety

• Published in: Han'guk Sikp'um Yŏngyang Kwahakhoe chi Vol. 41; no. 9
• Main Authors: Kang, Y.R., Chungbuk National University, Cheongju, Republic of Korea, Lee, S.H., Chungbuk National University, Cheongju, Republic of Korea, Kim, H.Y., National Institute of Crop Science, RDA, Milyang, Republic of Korea, Woo, K.S., National Institute of Crop Science, RDA, Milyang, Republic of Korea, Hwang, I.G., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea, Hwang, Y., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea, Yoo, S.M., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea, Kim, H.R., National Academy of Agricultural Science, RDA, Suwon, Republic of Korea, Kim, H.Y., Yongin University, Yongin, Republic of Korea, Lee, J.S., Chungbuk National University, Cheongju, Republic of Korea, Jeong, H.S., Chungbuk National University, Cheongju, Republic of Korea
• Format: Journal Article
• Language: Korean
• Published: 01.09.2012
• Subjects: bulk properties; DENSIDAD; DENSITE; DENSITY; drying method; red pepper powder; variety
• ISSN: 1226-3311

This study investigated the bulk properties of red pepper powders according to drying method and variety. Bulk density, compressive characteristics, irrecoverable work, dynamic angle, and stress relaxation were investigated. Loose bulk density ranged between 0.420 g/㎤ for Cheongyang cultivar and 0.427 g/㎤ for Hanbando cultivar by hot-air drying. The highest tapped bulk density was 0.586 g/㎤ for Hanbando cultivar by far-infrared drying and the lowest value was 0.523 g/㎤ for Hanbando cultivar by sun drying. Hausner ratio reached a maximum value of 1.370 for Hanbando cultivar by far-infrared drying. Compressibility ranged between 0.0016 for Cheongyang cultivar by sun drying and 0.0023 for Hanbando cultivar by far-infrared drying. Compression ratio reached a maximum value of 1.032 for Hanbando cultivar by hot-air drying. Dynamic angle of repose ranged between 37.47 and 42.97°. Irrecoverable work ranged between 76.0 and 81.7%. Relaxation reached a maximum value of 24.31% for Cheongyang cultivar by far-infrared drying.