The present invention provides a method for producing grape extract from grape skins and grape seeds comprising: a step for selecting and collecting edible grape skins and grape seeds, then removing foreign substances and washing them a step for obtaining the extract of grape by-product by grinding the washed grape skins and grape seeds, then extracting using a solvent a step for collecting and selecting sea tangle, then washing it a step for obtaining sea tangle extract by extracting the washed sea tangle using hot water extraction with alkalescent water and a step for adding 5-15 parts by weight of the sea tangle extract to the 100 parts by weight of the grape by-product extract, in order to reuse the grape skins and grape seeds in quantity and extract active ingredients contained therein as much as possible, and prevent the separation of oil component from a water layer. The grape extract from the grape skins and grape seeds has an activity of inhibiting oxidization so long term storage is available, and alginic acid contained in the sea tangle extract acts as an emulsifying agent so the separation between the oil and water layer does not happen, and the grape extract has excellent anti-oxidative activity and palatability so it is applicable for various uses like cosmetic additives, etc as well as foods, thereby enhancing effective value. Accordingly, the discarded grape skins and grape seeds can be used in quantity so the present invention has an effect of environmental protection.COPYRIGHT KIPO 2014본 발명은 포도의 껍질과 씨를 대량으로 재활용할 수 있으며 포도껍질과 포도씨에 함유된 유용성분을 최대한 추출하면서 포도씨의 오일성분이 물과 층 분리되지 않도록 하기 위하여, 식용가능한 포도껍질과 포도씨를 선별 수거하여 이물질을 제거하고 세척하는 단계 상기 세척한 포도껍질과 포도씨를 분쇄한 다음 용매에 추출하여 포도부산물 추출액을 얻는 단계 다시마를 채취하여 선별한 다음 세척하는 단계 상기 세척한 다시마를 약 알칼리수로 열수추출하여 다시마 추출액을 얻는 단계 및 상기 포도부산물 추출액 100중량부에 상기 다시마 추출액 5~15중량부를 첨가하는 단계를 포함하는, 포도껍질과 포도씨로부터 포도추출물을 제조하는 방법을 제공한다.본 발명의 포도껍질과 포도씨로부터 제조된 포도추출물은 산화억제 작용이 있어서 장기간 보관이 가능하고, 다시마 추출액에 함유된 알긴산이 유화제 역할을 하여 용액상태에서도 층 분리가 발생하지 않으며, 항산화 능력과 기호도
