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All Journal Journal of Tropical Food and Agroindustrial Technology Paradoks : Jurnal Ilmu Ekonomi
WDP, Al Machfudz
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Agriculture, Biological Sciences & Forestry Social Sciences

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Effect of Osmosis Time and Sucrose Concentration on The Antioxidant Activity of Red Dragon Fruit Juice (Hylocereus polyrhizus) : Efek Lama Osmosis dan Konsentrasi Sukrosa Terhadap Aktivitas Antioksidan (DPPH) Sari Buah Naga Merah (Hylocereus polyrhizus) Azizah, Idha Noer; Budiandari, Rahmah Utami; WDP, Al Machfudz
jurnal makanan tropis dan teknologi agroindustri Vol 4 No 01 (2023): January
Publisher : Universitas Muhammadiyah Sidoarjo

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21070/jtfat.v4i01.1608

Abstract

Dragon fruit contains antioxidants, beta-carotene, ascorbic acid and dietary fiber content in the form of pectin. Antioxidant are chemical compounds that can donate one or more electrons to free radicals to inhibit free radical reactions. Red dragon fruit can be processed into natural red dragon fruit juice using osmosis extraction. Osmotic extraction is done by soaking the fruits with sugar, it is done so that the water comes out towards the media. The advantages of osmosis are also many of them are easy, natural manufacture, the tools used are simple so that the fruit juice produced is safe for consumption by humans. The purpose of this study to determine the antioxidant activity of red dragon fruit juice. Antioxidant activity testing was carried out using the DPPH method (1,1 Diphenyl-2-picrylhydrazyl). This research was conducted using a factorial Randomized Block Design (RAK) with the first factor being sugar concentration which consisted of 3 treatment levels, namely (25%, 50% and 75%) and the second factor was osmosis duration (12, 24, and 36 hours). The results showed that red dragon fruit juice in the 24-hour 50% treatment had the highest antioxidant activity with an IC50 value of 28.
Pengaruh Word of Mouth, Kualitas Produk dan Harga terhadap Kepuasan Konsumen pada Enterpreneur Usaha Mie Setan Prigen Pasuruan WDP, Al Machfudz; Indayani, Lilik
Paradoks : Jurnal Ilmu Ekonomi Vol. 8 No. 2 (2025): Februari - April
Publisher : Fakultas Ekonomi, Universitas Muslim Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.57178/paradoks.v8i2.1186

Abstract

Penelitian ini bertujuan untuk mengetahui dan mengukur seberapa besar pengaruh dari Word of Mouth, Kualitas Produk dan Harga terhadap kepuasan konsumen pada entrepreneur Usaha Mie Setan Prigen Pasuruan. Penelitian ini termasuk penelitian kuantitatif yang menggunakan pendekatan explanatory research. Populasi pada penelitian ini diambil dari konsumen viva cosmestic di bisnis e-commerce tiktokshop. Sampel yang diperoleh berjumlah 100 responden dengan teknik pengambilan non-probability sampling dengan rumus lemeshow. Pengambilan data pada penelitian ini dengan cara observasi dan menyebarkan kuisioner yang diukur dengan menggunakan skala likert. Penelitian ini menggunakan metode analisis SPSS. Hasil penelitian ini membuktikan bahwa Word of Mouth berpengaruh terhadap kepuasan konsumen. Kualitas Produk berpengaruh terhadap kepuasan konsumen. Harga berpengaruh terhadap Kepuasan konsumen. Dengan demikian dapat disimpulkan bahwa Word of Mouth, Kualitas Produk dan Harga berpengaruh secara simultan terhadap kepuasan konsumen pada entrepreneur Usaha Mie Setan Prigen.
Co-Authors Azizah, Idha Noer Lilik Indayani Rahmah Utami Budiandari