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All Journal Jurnal Teknologi Dan Industri Pangan Microbiology Indonesia Indonesian Journal of Agricultural Research Jurnal Aplikasi Teknologi Pangan

Laksmi Hartayanie

Fakultas Teknologi Pertanian UNIKA Soegijapranata Semarang

Author-ID : 2464955

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Economics, Econometrics & Finance Environmental Science Immunology & microbiology Industrial & Manufacturing Engineering Medicine & Pharmacology Social Sciences Veterinary

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Articles

KARAKTERISTIK EMULSI SANTAN DAN MINYAK KEDELAI YANG DITAMBAH GUM ARAB DAN SUKROSA ESTER [Emulsion Characteristics of Coconut Milk and Soybean Oil Added by Gum Arabic, Sucrose Ester] Laksmi Hartayanie; Melisa Adriani; - Lindayani
Jurnal Teknologi dan Industri Pangan Vol. 25 No. 2 (2014): Jurnal Teknologi dan Industri Pangan
Publisher : Departemen Ilmu dan Teknologi Pangan, IPB Indonesia bekerjasama dengan PATPI

High saturated fatty acid content in coconut milk can be reduced by adding unsaturated fat. Pretreatment like pasteurisation, homogenization or stabilizer and emulsifier addition are essential to prevent emulsion deterioration that could happen in few hours. This study aimed to determine the most appropriate combination of gum arabic and sucrose ester induced the good emulsion stability based on physical and chemical characteristics. Furthermore this study also aimed to determine correlation between creaming index and other characteristics of coconut milk emulsion. Emulsion stability of mixed coconut milk in sterile glass bottles was observed for 7 days under 23-24°C Stabilizer and emulsifier added were gum arabic and sucrose ester in five combinations such as 6% gum arabic, 0.3% sucrose ester, 6% gum arabic + 0.3% sucrose ester, 3% gum arabic + 0.15% sucrose ester and 4.5% gum arabic + 0.225% sucrose ester then the physical and chemical characteristic changes were evaluated. Physical characteristic observed were creaming index, total colour change, viscosity and droplet distribution, meanwhile chemical characteristics observed were pH, TBA value, and protein content. Data were analyzed by One Way Anova at 95% significant level to determine differences among treatments. Bivariate Pearson Correlation was used in order to determine the intraction among sample characteristics. The data showed that, gum arabic and sucrose ester can keep the emulsion stability. The combination of 4.5% gum arabic and 0.225% sucrose ester provide the best physicochemical characteristics, which were the lowest creaming index and decreasing viscosity, and uniform droplet distribution.

The Role of Mungbean (Phaseolus radiatus) as a Fat Replacer on the Physicochemical Properties of Ice Cream Pulung Nugroho; Laksmie Hartayanie; Kartika Puspa Dwiana
Indonesian Journal of Agricultural Research Vol. 2 No. 3 (2019): InJAR, Vol. 2, No. 3, November 2019
Publisher : Talenta Publisher

Fat replacer can be an alternative in the processing of making ice cream. The use of fat replacers can replace the role of fat as forming texture, flavor, and aroma without reducing the quality of the ice cream. In this research, green beans we used as a fat replacer as a substitution to whipped cream. Mung beans are a high source of protein and carbohydrates. The purpose of this study was to determine the physicochemical characteristics of ice cream with the addition of mung bean flour and determine the optimal ratio of whipped cream optimal and mung bean as a fat replacer. Based on the results of research that has been done ice cream with a ratio of green bean flour: whipped cream (50: 50) has the best quality with a fat content of 7.74%, overrun 78.13%, hardness 17.46 kgf, viscosity 1170 cP.S, melting time is 49.17 minutes. It was concluded that the best ice cream was produced from addition of 25% and 50% green bean flour.

Pengaruh Deep-Fat Frying terhadap Kandungan Asam Glutamat pada Bumbu Penyedap Granul Spirulina sp. Bernadeta Pingkan Larasati; Victoria Kristina Ananingsih; Laksmi Hartayanie; Alberta Rika Pratiwi
Jurnal Aplikasi Teknologi Pangan Vol 8, No 2 (2019): Mei 2019
Publisher : Faculty of Animal and Agricultural Sciences, Diponegoro University

AbstrakPenelitian ini bertujuan mengetahui pengaruh deep-fat frying terhadap kandungan asam glutamat bumbu penyedap granul Spirulina sp. yang telah diaplikasikan ke dalam adonan tepung terigu. Penelitian pendahuluan dilakukan untuk menghasilkan tiga formulasi bumbu penyedap granul Spirulina sp berdasarkan kadar gula dan kadar garam bumbu 3 produk komersial. Tiga formulasi penyedap granul Spirulina sp diaplikasikan ke dalam tepung terigu yang kemudian digoreng dengan metode deep-fat frying pada suhu 140, 160, dan 180oC hingga matang. Adonan sebelum dan sesudah penggorengan dianalisis warnanya menggunakan chromameter. Kandungan asam glutamat adonan setelah penggorengan kemudian dianalisis menggunakan L-glutamate assay kit dan diuji spektrofotometer pada panjang gelombang 492 nm. Hasil penelitian menunjukkan bahwa proses penggorengan menyebabkan perubahan warna pada adonan. Peningkatan suhu penggorengan dari 140 ke 180oC menyebabkan penurunan nilai L* dari ±47 ke ±39, penurunan nilai b* dari ±26 ke ±19, serta peningkatan nilai a* dari ±8 ke ±10. Hasil penelitian juga menunjukkan peningkatan suhu penggorengan 140 ke 180oC yang menyebabkan penurunan kandungan asam glutamat adonan bumbu penyedap granul Spirulina sp. dari ±8 menjadi ±3 mg/100g. Kesimpulannya, peningkatan suhu penggorengan menyebabkan perubahan warna dan penurunan kandungan asam glutamat pada semua formulasi bumbu penyedap yang diimplentasikan pada adonan tepung terigu.Effect of Deep-Fat Frying to The Glutamic Acid Content in Spirulina sp. Granule Flavor EnhancerAbstractThis research aims to determine the effect of deep-fat frying on the content of glutamic acid in Spirulina sp. granule flavor enhancer that has been applied to the flour dough. Preliminary research was produced three formulas of Spirulina sp. granule flavor enhancer, that were formulated based on sugar and salt content on three commercial seasoning brands. Thus, three formulas were applied to wheat flour then fried with deep-fat frying method at 140, 160, and 180oC until cooked well. The color of doughs before and after frying were analyzed using chromameter. The glutamic acid content were analyzed using L-glutamate assay kit and tested by spectrophotometer at 492 nm. As results, frying process changed the color of the dough. The increase in the frying temperature from 140 to 180oC caused a decrease in value of L from ± 47 to ±39, value of b* from ± 26 to ±19, and increase the value of a* from ±8 to ±10. The increase in the temperature of frying from 140 to 180oC caused a decrease in glutamic acid content of Spirulina sp. from ±8 to ±3 mg/100 g. As conclusion, increase in the frying temperature might cause a change in color and decreased content of glutamic acid in the doughs.

Antimicrobial Activity of Lactic Acid Bacteria from Bamboo Shoot Pickles Fermented at 15 oC LAKSMI HARTAYANIE; LINDAYANI LINDAYANI; MONIKA PALUPI MURNIATI
Microbiology Indonesia Vol. 10 No. 2 (2016): June 2016
Publisher : Indonesian Society for microbiology

Lactic Acid Bacteria (LAB) produces natural antimicrobial compounds that can inhibit and prevent the growth of spoilage bacteria. LAB can be isolated from fermented food such as pickles which fermented at Â cool temperature. The objective of this research to isolate and to obtain Â LAB from yellow bamboo (Dendrocalamus asper) shoots pickles that has antimicrobial activity against Escherichia coliÂ and Staphylococcus aureus.Â It was made by submerged yellow bamboo shoots in 2.5%Â Â of brine solution and kept into sealed container then fermented at chiller (15oC) temperatures for 10 days. LAB was isolated using MRS agar and identified base on their morphological, physiological and biochemical characteristics. The result showed that LAB isolates identified as Lactobacilli and had antimicrobial activity against Escherichia coliÂ and Staphylococcus aureus.Â All Lactobacilli (21 isolates) that was isolated from fermentation at 15oC were homofementative.

Co-Authors - Lindayani Alberta Rika Pratiwi Bernadeta Pingkan Larasati Kartika Puspa Dwiana LINDAYANI LINDAYANI Melisa Adriani MONIKA PALUPI MURNIATI Pulung Nugroho Victoria Kristina Ananingsih

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