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Perubahan Komposisi Kimiawi Produk Yogurt dengan Penambahan Kalsium Karbonat pada Kultur Starter Campuran Safari, Agus; Ghina, Sarah Fahma; Djajasoepena, Sadiah; ', O. Suprijana; Indrawati, Ida; Rachman, Saadah D.; Kamara, Dian S.; Ishmayana, Safri
Jurnal Natur Indonesia Vol 17, No 1 (2016)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (488.46 KB) | DOI: 10.31258/jnat.17.1.5-12

Abstract

Mixed lactic acid bacteria culture is commonly used in yogurt production. In the present study, two lactic acid bacteria (Lactobacillus bulgaricus and Streptococcus thermophillus) was used as starter culture. Calcium carbonate was added to the starter culture to increase the quality of mixed starter culture of L. bulgaricus and S. thermophillus with ratio of 4:1. The present study was directed to investigate the chemical composition of mixed starter culture with and without calcium carbonat addition. Furthermore, the effect of each starter culture on yogurt product chemical composition was also examined. The pH, lactose, soluble protein and acid content was determined as chemical composition parameters. For starter culture without calcium carbonate addition, the yogurt has pH, lactose, soluble protein and acid content of 4.18–4.39, 4.18–4.39% w/v, 2.88–4.36% w/v and 0.82–0.99% w/v, respectively. While for starter culture with calcium carbonate addition, the yogurt product has pH, lactose, soluble protein and acid content of 4.26–4.37, 1.47–1.75% b/v, 3.42–4.95% w/v and 0.86–1.11% w/v, respectively. Addition of 0.05% w/v calcium carbonate to mixed starter culture gave effect on lactose consumption, where it still can convert lactose to lactic acid up to 45 days of storage. Furthermore, the yogurt product made with starter culture with calcium carbonate addition has higher soluble protein content compared to yogurt made with starter culture without calcium carbonate addition
Pengaruh Mikoriza Arbuskula dan Pupuk Fosfat Terhadap Pertumbuhan Jambu Mente pada Tanah Podsolik Merah Kuning Trisilawati, Octivia; Supriatun, Titin; Indrawati, Ida
JURNAL BIOLOGI INDONESIA Vol 3, No 2 (2001): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (218.958 KB) | DOI: 10.14203/jbi.v3i2.3476

Abstract

ABSTRACTEffect of Arbuscular Mycorrhizae Fungi and Phosphate Fertilizer to the Growth of Cashew on Red Yellow Podzolic Soil. The research about the effect of arbuscular mycorrhizae (AM) fungi and phosphate fertilizer applications to the growth of cashew seedling (Anacardium occidentale L.) grown on the red yellow podzolic soil was conducted in the green house at Cimanggu Research Installation, Research Institute for Spice and Medicinal Crops, Bogor. Completelly randomized design with factorial pattern, two factors and three replications was used. First factor was AM inoculation consisted of: without AM, Glomus etunicatum, Mycofer, whether second factor was phosphate fertilizer level consisted of: 0, 15, 30, and 45 g P2O5 per plant. The result showed an interaction between AM and phosphate fertilizer levels to the plant height, leaves dry weight, and spore population, and the best result on giving mycofer with P level 30 g P2O5/plant. AM inoculation significantly effected plant height, stem diameter, dry weight of leaves, stem and root, percentage of AM infection, and spore population, whether phosphate application significantly effected all of the parameters.Key words : Arbuscular mycorrhizae, phosphate, Anacardium occidentale L., plant growth
PENGARUH MIKORIZA ARBUSKULA DAN PUPUK FOSFAT TERHADAP PERTUMBUHAN JAMBU MENTE PADA TANAH PODSOLIK MERAH KUNING Trisilawati, Octivia; Supriatun, Titin; Indrawati, Ida
JURNAL BIOLOGI INDONESIA Vol 3, No 2 (2001): JURNAL BIOLOGI INDONESIA
Publisher : Perhimpunan Biologi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14203/jbi.v3i2.3476

Abstract

ABSTRACTEffect of Arbuscular Mycorrhizae Fungi and Phosphate Fertilizer to the Growth of Cashew on Red Yellow Podzolic Soil. The research about the effect of arbuscular mycorrhizae (AM) fungi and phosphate fertilizer applications to the growth of cashew seedling (Anacardium occidentale L.) grown on the red yellow podzolic soil was conducted in the green house at Cimanggu Research Installation, Research Institute for Spice and Medicinal Crops, Bogor. Completelly randomized design with factorial pattern, two factors and three replications was used. First factor was AM inoculation consisted of: without AM, Glomus etunicatum, Mycofer, whether second factor was phosphate fertilizer level consisted of: 0, 15, 30, and 45 g P2O5 per plant. The result showed an interaction between AM and phosphate fertilizer levels to the plant height, leaves dry weight, and spore population, and the best result on giving mycofer with P level 30 g P2O5/plant. AM inoculation significantly effected plant height, stem diameter, dry weight of leaves, stem and root, percentage of AM infection, and spore population, whether phosphate application significantly effected all of the parameters.Key words : Arbuscular mycorrhizae, phosphate, Anacardium occidentale L., plant growth
Potensi Antibakteri Jamur Endofit dari Batang dan Daun Jamblang (Syzygium cumini L.) Indrawati, Ida; Ningsih, Nur Hasna; Andayaningsih, Poniah; Wulandari, Asri Peni; Rahayuningsih, Sri Redjeki
Proceeding Biology Education Conference: Biology, Science, Enviromental, and Learning Vol 16, No 1 (2019): Proceeding Biology Education Conference
Publisher : Universitas Sebelas Maret

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (151.948 KB)

Abstract

Endophytic Fungi is one of the natural antibacterial sources that has not been studied. Jamblang (Syzygium cumini L.) is a plant of the Myrtaceae family that has many benefits for health. Endophytic shoots located on the leaves and stems of Jamblang can be one of the natural sources of antibacterial. This study was conducted to obtain endophytic fungi isolates from Jamblang stems and leaves, that have antibacterial activity against Bacillus cereus. The method used at the stage of endophytic shell isolation from Jamblang stem and leaves is Direct Dilution Plate method. At the antibacterial test stage of Bacillus cereus was used agar block diffusion method. Observations were made of the clear zone formed. Isolate Endophytic Fungi which has a clear zone that is D2 Yellow isolate, D4 White Ash, D4 gray Ash, Black B2, B2 White and B3 Yellow. The largest clear zone is shown by B2 Black isolate with a diameter of 14.75 mm.