การพัฒนาผลิตภัณฑ์พุดดิ้งผักเพื่อผู้สูงอายุและผลของการเก็บรักษาผลิตภัณฑ์ต่อปริมาณ โพลีฟีนอลทั้งหมดและฤทธิ์การต้านอนุมูลอิสระ FORMULATION OF VEGETABLE PUDDING FOR ELDERLY AND THEIR STORAGE EFFECT ON TOTAL PHENOLICS AND ANTIOXIDANT ACTIVITIES
Keywords:
Storage, Antioxidant Activities, Total Phenolic Contents, Vegetable PuddingAbstract
Pudding is a nutrient-rich dessert commonly served for elderly who is lack of chewing ability due to tooth loss because of its soft texture. Pudding is usually composed of milk, oil, sugar and hydrocolloids. The aim of this study was to formulate ready-to-eat pudding containing essential nutrients with varying types of vegetable powder added, including sweet potato (SP), sweet corn (SC), and pumpkin (PK) powder. The pudding was studied the sensory acceptability, color, total phenolic contents (TPC) and antioxidant activities (AA) measured by 2,2-diphenyl-1-picrylhydrazyl (DPPH) and oxygen radical absorbance capacity (ORAC) assays. The effect of storage time on the color, TPC and AA of each developed formula was also investigated. The vegetable powder was added at 8% (w/w) separately into the control. All developed puddings were accepted by the panelists at like moderately of overall acceptability. Although, the color of vegetable puddings were darker than the control, the panelists still accepted. The TPC and AA of vegetable puddings were greater than that of the control, particularly SC and PK pudding. The TPC content of SP pudding was similar to that of the control, whilst the AA of it was higher than that of the control. The developed products stored at 35 ºC for 12 weeks showed that the color was darker. TPC of all formulas were highest at week 6, and then declined until week 12. The AA of the vegetable pudding increase somewhere during storage time, then reduced at the week 12. This study demonstrated that vegetable powder affected TPC and AA. Furthermore, the storage time played an important role on TPC and AA. These products are prototype of supplement for elderly which have health benefits beyond basic nutrition. In addition, these products can be extended to children and health conscious consumers as well.
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