Deni Elnovriza
Program Studi Ilmu Kesehatan Masyarakat FK Unand

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THE EFFECT OF COOKING METHODS OF SEVERAL VARIETIES OF RICE ON ZINC BIOAVAILABILITY DETERMINED USING EXPERIMENTAL RATS Elnovriza, Deni; Rimbawan, .; Wirakusumah, Emma S; Sukandar, Dadang
Media Gizi dan Keluarga Vol. 25 No. 1 (2001): Jurnal Media Gizi dan Keluarga
Publisher : Media Gizi dan Keluarga

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Abstract

The specific objectives of the research were 1) to analyze zinc content of rice, 2) to analyze effect of cooking on zinc content of rice and 3) to identify the effect of cooking methods of rice on bioavailability of zinc. Zinc bioavailability was indicated by serum alkaline phosphatase activity, zinc serum and growth of Wistar rats. Boiled, steamed and puffed of Membramos, Cisadanes and Brown rice were used in this research. The results of this study showed that cooking methods affect zinc in rice. Zinc content decreased after cooking in all of cooking methods. The lost of zinc was found highest in puffed rice and lowest in steamed rice. When rats fed those rice-based diets, zinc serum was for all of treatments not significantly different. Measurement of serum alkaline phosphatase activity of rats fed steamed and boiled rice was significantly higher than control, but not for rats fed puffed rice. All rats fed treatment diets have higher growth than those fed control. Zinc bioavailability was found lower in puffed rice than steamed and boiled. Steamed rice has zinc bioavailability better than that of boiled and puffed.
DEVELOPMENT OF FISH BARS AS A HIGH ZINC AND CALCIUM SNACK MADE FROM BILIH FISH (MYSTACOLEUSEUS PADANGENSIS BLKR) FLOUR Elnovriza, Deni; Riyadi, Hadi; Rimbawan, Rimbawan; Damayanthi, Evy; Winarto, Adi
Jurnal Gizi dan Pangan Vol. 14 No. 2 (2019)
Publisher : Food and Nutrition Society of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (299.563 KB) | DOI: 10.25182/jgp.2019.14.2.83-90

Abstract

The study analysed differences in nutrition content of various bilih fish flour proportions in bilih fish bar with zinc and calcium as minerals of interest. The study used a Completely Randomized Design (CRD). The proportion of bilih fish flour in the fish bars dough were of three levels, i.e. 30%, 40% and 50% of the total weight of flour. The data obtained were analyzed with one-way ANOVA, followed by Duncan's New Multiple Range test. The level of statistical significance was set at p<0.05. The best proportion based on its nutritional content was the 50% with the energy content of 327 kcal, protein content 22.75%, lipid content 11.99%, carbohydrate content 32.06%, moisture content 28.28%, ash content 4.44%, zinc content 4.58 mg, and calcium content 922.23 mg per 100 g. A serving size (±30 g) of treatment is able to suffice for 5.06-7.05% zinc and 0.87-16.77% calcium adequacy as well as the daily requirement of 2,150 kcal. Sensory evaluation showed that the treatments had no significant effects on the organoleptic attributes of the fish bars, except for taste (0.033). This bilih fish bar can be utilized as a source of zinc and calcium for high-risk groups such as children, adolescents, pregnant women, and people with diabetes.