Tujuan pelaksanaan dari penelitian ini untuk mengetahui pengaruh tepung, pati, serat, dan pigmen antosianin ubi jalar ungu terhadap karakteristik tekstur roti manis. Pada penelitian ini rancangan yang digunakan yaitu rancangan acak lengkap non faktorial terdiri dari 2 kontrol dan 6 perlakuan perbandingan tepung: pati: serat: pigmen antosianin ubi jalar ungu. Hasil analisis terhadap karakteristik tekstur roti manis menunjukkan perbandingan antara tepung, pati, serat, serta pigmen antosianin ubi jalar ungu berpengaruh berbeda yang nyata atau P lebih kecil dari 0.05 untuk tekstur (cohesiveness) serta berbeda yang sangat nyata atau P lebih kecil dari 0.01 untuk tekstur (chewiness, adhesiveness, % deformasi, hardness, gumminess, dan springiness). Penambahan pati ubi jalar ungu dengan jumlah semakin meningkat pada roti manis dapat meningkatkan cohesiveness, adhesiveness, springiness, dan gumminess serta menurunkan % deformasi sedangkan penambahan serat ubi jalar ungu dengan jumlah semakin meningkat pada roti manis dapat meningkatkan chewiness, hardness, dan gumminess.
Breadfruit is a plant that has potential as a national food security reserve because breadfruit is able to produce throughout the year, breadfruit is also a vegetable food ingredient that contains a lot of carbohydrates. Purple sweet potato can improve the taste of food processing products, because of its distinctive purple color, and high nutritional content. Saga seeds are high protein-producing plants concurrently increasing the nutritional value of food, and mocaf is the result of cassava fermentation by special enzymes that produce products that have characteristics such as wheat flour and have the potential as a food substitute for wheat flour. In this study, producing brownies from various composite flour to develop food diversity in Indonesia. The final results of the study showed that composite flour (modified breadfruit, purple sweet potato, saga seeds, and mocaf) with a ratio of 35%: 45%: 15%: 5% produced the best quality brownies in terms of hedonic values (taste, aroma, color, texture, general acceptance), water content, ash content, fat content, protein content, and fiber content.
This study was carried out to investigate the physicochemical and sensory characteristics of sweet bun as affected by the ratio of wheat flour (WF) and purple sweet potato flour (PSPF). Six samples of breads were made from WF and PSPF in various ratio namely P1 (100% wheat flour), P2 (80:20), P3 (60:40), P4 (40:60), P5 (20:80), and P6 (100% PSP flour). The results showed that the ratio of WF and PSPF had significant effect (P < 0.05) on the colour value (L, a, b, and ºhue), browning index, specific volume, texture, anthocyanin content, crude fibre content and organoleptic value of sweet bun. The sweet bun that most acceptable by consumers was produced from 60% WF and 40% PSPF.
Penelitian ini bertujuan untuk mengetahui pengaruh perbandingan tepung terigu dengan tepung ubi jalar ungu dan penambahan xanthan gum terhadap mutu donat, dan untuk mendapatkan formula donat dengan campuran tepung terigu dengan tepung ubi jalar ungu dan penambahan xanthan gum yang dapat diterima oleh konsumen. Penelitian ini menggunakan metode Rancangan Acak Lengkap dengan 2 faktor; pertama yaitu perbandingan tepung terigu dengan tepung ubi jalar ungu (P): P1= 100%:0%, P2= 90%:10%, P3= 80%:20%, P3=70%:30% dan P5= 60%:40%. Faktor kedua yaitu xanthan gum (G): G1= 0%, G2= 0.25%, G3= 0.5%. Perbandingan tepung terigu dengan tepung ubi jalar ungu memberikan pengaruh berbeda sangat nyata terhadap kadar air, kadar abu, kadar protein, volume pengembangan, indeks warna, organoleptik warna, organoleptik rasa, organoleptik tekstur, deformasi, hardness, gumminess, dan springiness. Penambahan xanthan gum memberikan pengaruh berbeda sangat nyata terhadap kadar air, kadar abu, kadar protein, kadar lemak, volume pengembangan, indeks warna, organoleptik warna, organoleptik aroma, organoleptik rasa, organoleptik tekstur, deformasi, hardness, gumminess, dan springiness. Komposisi donat terbaik adalah perlakuan perbandingan tepung terigu dengan tepung ubi jalar ungu 80%:20% dan penambahan xanthan gum 0.5% yang memiliki antosianin sebesar 238.5 mg/100g.
The purpose of this research was to determine the effect of ratio of moringa leaves juice with pineapple juice and the best percentage of arabic gum on the quality of jelly candy. This research was using completely randomized design with two factors, i.e. : ratio of moringa leaves juice with pineapple juice (K): (100%:0% ; 75%:25% ; 50%:50% ; 25%:75% ; 0%:100%) and arabic gum percentage (G): (1,0% ; 1,5% ; 2,0%). Parameters analyzed were moisture content, ash content, vitamin C content, total soluble solid, total acid, lightness value (L*), hedonic organoleptic values of colour, flavour, taste, texture and score organoleptic values of colour and texture. The results showed that the ratio of of moringa leaves juice with pineapple juice had highly significant effect on ash content, vitamin C content, total acid, lightness value, hedonic organoleptic test of colour, flavour, taste and score organoleptic value of colour. The ratio of moringa leaves juice with pineapple juice (25%:75%) and 2,0% arabic gum percentage produces the best quality of jelly candy based on hedonic organoleptic values of colour, flavour, taste, texture and score organoleptic values of colour and texture.
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