Articles

Found 2 Documents
Search

Storage Stability of Additive-free Salacca sp. Fruit Leather Purwandari, Umi; Mojiono, Mojiono; Putri, Ninik Wulandari K; Efendi, Miftakhul; Wijaya, Alfan
Indonesian Journal of Agricultural Research Vol 1 No 3 (2018): InJAR, Vol. 1, No. 3, November 2018
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1508.345 KB) | DOI: 10.32734/injar.v1i3.495

Abstract

We developed additive-free fruit leather made from snake fruit (Salacca sp.), one of the exotic fruits of Madura, Indonesia. Mature snake fruit variety native of Bangkalan Regency was peeled, the seed was discarded, and flesh was blanched for 5 minutes, cooled and then crushed in an electric blender to form a smooth slurry. The slurry was then cooked until thick, spread onto a flat surface, and then dried in an oven at 60°C until dry. Fruit leather with a water content of around 10% was kept in aluminium foil or polypropylene plastic bag at 25 and 35°C for 3 weeks.  Every week, fruit leather was examined for tensile strength, water activity, colour (L, a b*values), and titratable acidity. Sensory analysis was performed using ten semi-trained panellists to score hardness, chewiness, sweetness, astringency, aroma, shininess, and cohesiveness. Results indicated that tensile strength apparently increased during storage. Polypropylene bag showed lower water activity and value, but higher titratable acidity of fruit leather. Storage time increased water activity, titratable acidity, but reduced all colour parameters. Higher storage temperature led to higher L and b values. On the contrary, sensory analysis results indicated the limited effect of factors studied. The shininess of fruit leather reduced with the progress of storage, and cohesiveness increased in the first week of storage only, followed by constant reduce towards the storage time. Astringency in snake fruit is a limiting factor. However, snake fruit leather showed moderate level (4.6 out of 9 score) of astringency.
Pengembangan Mi Bebas Gluten dengan Teknologi Ekstrusi Mojiono, Mojiono; Nurtama, Budi; Budijanto, Slamet
JURNAL PANGAN Vol 25, No 2 (2016): PANGAN
Publisher : Perum BULOG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33964/jp.v25i2.328

Abstract

Diversifications of raw materials for noodle preparation using local carbohydrate sources offer considerable advantages through lowering wheat demand and providing specially-designed food such as gluten-free diet. Structural formations of gluten-free noodles substantially differ from wheat-based noodles due to the presence of gluten. Therefore, studies on starch characteristics including the ratio of amylose and amylopectin, granule morphology, and gelatinization properties are absolutely essential since they are responsible for noodle quality. Starch modification, for instance, HMT (heat moisture treatment), is a promising technique to improve starch properties for noodle preparation. Furthermore, processing conditions also account for noodle quality. Extrusions constitute an appropriate technology for the development of noodle processing technique as it gelatinizes starch and produces pressing and kneading effects that are required to form desirable noodle structure. This paper reviews current studies of gluten-free noodles and extrusion technology for noodle production.