จำนวน Repository ( 2 )

การยืดอายุการเก็บรักษากล้วยหอมด้วยฟิล์มไคโตซาน
การยืดอายุการเก็บรักษากล้วยหอมด้วยฟิล์มไคโตซาน

This research was study the optimum condition for chitosan film forming from preparing the chitosan solution 2% (w/w) that added with acetic acid 1% (w/w). The solution viscosity was adjusted by glycerol at 15 30 and 45 % (w/w) and Tween 10% (w/w). From the experimental results in case of the chitosan solution that adding with glycerol 45 % (w/w) Tween 10% (w/w) and drying which final moisture content at 23 % (d.b.) affected the highest viscosity of the chitosan film that compared with other condition. The ultimate tensile strength of chitosan film was 4.14 MPa. For banana storage testing the banana was wrapped with chitosan film for 10 days at room temperature the first five days the color of banana peel was yellow normally after that the peel was slightly increased with dark color. The total soluble solid of the banana was in the range of 19-28 Brix.

2565
ผลของปริมาณแป้งกล้วยหอมเขียวทดแทนแป้งสาลีที่มีต่อคุณลักษณะของขนมปัง
ผลของปริมาณแป้งกล้วยหอมเขียวทดแทนแป้งสาลีที่มีต่อคุณลักษณะของขนมปัง

The objective of this research was to study the effect of substitution of wheat flour with Cavendish banana flour on specific volume density antioxidant activity and the sensory acceptance of bread using Cavendish banana flour instead of wheat flour as 0% (control) 10% 20% and 30% of the total flour weight. It was found that an increasing amount of Cavendish banana flour caused the darker of the bread appearance and the specific volume of the bread decreased from 4.22 to 2.69 cm3/g while the bread density increased from 0.24 to 0.37 g/cm3. The total phenolic content and antioxidant activity of the bread made of Cavendish banana flour instead of wheat flour were significantly greater than the control bread (p<0.05). Also the sensory acceptance scores by panelists in terms of appearance color aroma taste texture and overall acceptance of bread using 10-30% of Cavendish banana flour content were not significantly different compared to the control bread (p>0.05) . Therefore the bread using 30% Cavendish banana flour gave the highest amount of total phenolic compounds and antioxidant activity with well accepted by consumers.

2565