Utility of Post-Mature Kiwi Fruit Powder in Bakery Products

Utilities of kiwi fruit powder prepared from post-mature kiwi fruit in bakery products such as bread and cookie were investigated. The characteristics of bread and cookie with different amounts of kiwi fruit powder were examined through physical measurement (color specific volume, crumb firmness, spread ratio, and extensibility) and seneory evaluation. In baking performance of frozen dough with kiwi fruit powder, $L^{*}$, $a^{*}$, and $b^{*}$ values of crust and specific volume gradually decreased as the concentration of kiwi fruit powder increased. Crumb firmness had significant difference compared to bread without kiwi fruit powder, and sensory characteristics of breads with kiwi fruit powder were more poor than bread without kiwi fruit powder. In a cookie with kiwi fruit powder although specific volume was not significantly different, the spread ratio of cookie and cookie toughness significantly decreased; furthermore, cookie extensibility significantly increased as an amount of kiwi fruit powder increased. Hardness and moistureness of cookies in sensory evaluation had a similar tendency as toughness and extensibility of cookies. Therefore, post-mature kiwi fruit could be utilized to improve the cookie qualities.ies.s.

과숙된 키위 파우더의 Bakery 제품에의 이용성

과숙된 키위로 제조한 키위 파우더를 냉동생지나 쿠키와 같은 bakery 제품의 품질개량제로서 이용 가능한지에 대하여 조사하였다. 키위 파우더를 첨가한 냉동생지로 제조한 빵은 빵 속과 거죽의 색이 전체적으로 진해졌고, crumb firmness, 비용적과 관능적인 특성이 좋지 않아서 키위 파우더의 빵 제품에 대한 적용은 어려움이 있었다. 그러나 쿠키의 경우 쿠키의 비용적은 첨가량에 따라 유의적인 차이를 나타내지 않았고 쿠키의 spread ratio는 유의적으로 감소하였으나 퍼짐성은 첨가량에 따라 조절할 수 있었다. 또한 키위 파우더는 오븐 내에서 쿠키의 수분증발을 지연시켜 쿠키를 촉촉하게 할 수 있었고, 유기산에 의해 신맛을 제거 하거나 masking할 수 있다면, 쿠키의 품질(조직감)개량제로서 가능성이 있음을 알 수 있었다.