To provide a novel agent that can easily and inexpensively provide shape-retention with fewer ingredients compared to conventional filling agent and heat-resistant material or the like.SOLUTION: By combining citrus or apple-derived HM pectin with likewise citrus or apple-derived non-amidated LM pectin, a novel agent that can easily and inexpensively provide shape retention with fewer ingredients compared to conventional filling agent and heat-resistant material or the like is obtained.SELECTED DRAWING: None【課題】従来のフィリング剤や耐熱性の素材等と比べて、より少ない成分で簡便かつ安価に保形性を付与できる新たな剤の提供。【解決手段】シトラス又はアップル由来のHMペクチンと、同じくシトラス又はアップル由来のアミド化されていないLMペクチンを組み合わせることにより、従来のフィリング剤や耐熱性の素材等と比べて、より少ない成分で簡便かつ安価に保形性を付与できる新たな剤を得た。【選択図】なし