Rice flour-based cookies are gluten-free products. Cricket powder and isolated soy protein are alternative protein sources which can provide desirable nutrition. Xanthan gum is one of the hydrocolloids affecting the texture of cookies. This study investigated the effect of cricket powder (CP) isolated soy protein (ISP) and xanthan gum on the physical chemical and sensory qualities of rice flour-based cookies. The substitution of rice flour with two protein sources CP (25 and 35%) and ISP (0 25 and 35%) in the cookie formulations which were evaluated for their qualities using a 2x3 factorial arrangement in a completely randomized design. The result showed that when CP increased or ISP decreased the diameter of the product significantly (p≤0.05) increased but the hardness of the product significantly (p≤0.05) decreased. The effect of xanthan gum (0 0.14 0.28 and 0.42%) on the quality of products was also evaluated. It indicated that the increase in xanthan gum content significantly (p≤0.05) increased water activity moisture content and hardness of product while the liking score for hardness and overall liking significantly (p≤0.05) decreased. Therefore the optimal formula of rice flour cookies was 25% CP and 35% ISP for rice flour replacement without xanthan gum.

This special project aimed to determine the appropriate procedure for extending carved dye radish (CDR) and study the type for coating CDR. From the results radish was carved become to rose shape and immersed in peroxyacetic acid 0.08% and calcium choride 1.5% after that was immersed in food dye solution such as blue 0.01% 0.05% and pink 0.01% 0.05%. Then CDR was coated in three types of coating namely xanthangum gelatin and agar. From the result xanthangum has weight loss yield% firmness and color value more than galatin and agar. CDR with blue 0.01% has weight loss yield% 3.24 firmness 3.12 N color value L* 55.09±0.04 a* -20.52±0.07 b* -15.93±0.57 blue 0.05% has weight loss yield% 3.24 firmness 26.01 N color value L* 45.54±0.03 a* -25.70±0.20 b* -26.85±-0.29 pink 0.01% has weight loss yield% 3.09 firmness 23.99 N color value L* 55.03±0.11 a* 29.42±0.05 b* -0.39±0.24 and pink 0.05% has weight loss yield% 3.27 firmness 24.41 N color value L* 45.08±0.07 a* 39.75±0.27 b* 0.30±0.16. The carved radish with blue and pink storage in plastic box stored in aluminum foil at 3-4 ๐C were during 5 days. Microorganism indicated that there were no more than 1×106 colonies per 1 g of sample.