Preparation of banana puree
Bananas (Musa sapientum) were washed, peeled, cut transversally into slices (1 cm thick) and blanched in saturated steam for 1, 3, 5 or 7 min. Immediately after, the slices were sprinkled with a 1% w/v ascorbic acid solution (0.2 mL/g banana) and aseptically processed with a hand blender to produce a puree. Phosphoric acid solution (10% w/v) and sucrose were added to adjust the pH to 3.4 and reduce the initial aw of 0.986 to 0.97, respectively. Control (unblanched) banana puree was also prepared in the same way. Each banana puree was divided into four equal parts with one stored as a microbial control without any treatment, another maintained as a color control with 1000 ppm potassium sorbate added and without HHP treatment, and the other two parts subjected to selected HHP treatments. Ten bags (ea100g) were filled with each puree for each HHP treatment or control
Preparation of banana pureeBananas (Musa sapientum) were washed, peeled, cut transversally into slices (1 cm thick) and blanched in saturated steam for 1, 3, 5 or 7 min. Immediately after, the slices were sprinkled with a 1% w/v ascorbic acid solution (0.2 mL/g banana) and aseptically processed with a hand blender to produce a puree. Phosphoric acid solution (10% w/v) and sucrose were added to adjust the pH to 3.4 and reduce the initial aw of 0.986 to 0.97, respectively. Control (unblanched) banana puree was also prepared in the same way. Each banana puree was divided into four equal parts with one stored as a microbial control without any treatment, another maintained as a color control with 1000 ppm potassium sorbate added and without HHP treatment, and the other two parts subjected to selected HHP treatments. Ten bags (ea100g) were filled with each puree for each HHP treatment or control
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