Claim Missing Document
Check
Articles

Found 3 Documents
Search

Komparasi Yield Nata De Tomato Dengan Nata De Coco Berdasarkan Durasi Fermentasi Efri Gresinta; Rosa Dewi Pratiwi; Fitri Damayanti; Erik Perdana Putra
IJIS Edu : Indonesian Journal of Integrated Science Education Vol 1, No 2 (2019): July 2019
Publisher : UIN Fatmawati Sukarno Bengkulu

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (551.092 KB) | DOI: 10.29300/ijisedu.v1i2.2248

Abstract

Nata adalah bahan menyerupai gel yang terapung pada medium yang mengandung gula dan asam hasil bentukan mikroorganisme Acetobacter xylinum. Secara mikroskopik berupa massa fibril tidak beraturan yang menyerupai benang. Supaya hasil Nata berkualitas, media disesuaikan dengan syarat tumbuh (sifat fisik-kimia media) bakterinya A.xylinum. Nata de coco tanpa ZA dengan lama fermentasi 10 hari menghasilkan yield paling baik dengan ketebalan 1,1 cm dan berat 600 gram. Sedangkan pada nata de tomato dengan ZA memberikan yield terbaik dengan ketebalan0,5 cm pada lama fermentasi 10 hari. Hal ini menunjukkan bahwa ketebalan nata de coco dengan nata de tomato berbeda. Dipengaruhi oleh variasi substrat dan komposisi bahan. Pada nata de tomato, ekstrak nata tomato dicampurkan dengan air dengan perbandingan 1:4. Hal inilah yang menyebabkan yield nata de tomato dan coco berbeda. Kandungan nutrient atau glukosa pada sari buah tomat lebih sedikit dibandingkan dengan kandungan glukosa pada nata de coco.  Hasil uji organoleptik menyimpulkan bahwa : 1) Panelis lebih menyukai nata dengan tekstur kenyal yang diperoleh dari nata de coco pada hari ke-10, 2) Panelis lebih menyukai nata de coco maupun tomato dengan aroma tidak asam karena pada saat dipanen, nata  dicuci lalu direbus selama 20 menit pada suhu 100°C sehingga aroma asam pada nata hilang pada saat pencucian dan perebusan.3) Panelis lebih menyukai nata dengan rasa enak karena perbedaan lama fermentasi menghasilkan citarasa nata enak yang relatif sama.AbstractNata is a gel-like material that floats on a medium containing sugar and acid formed by the microorganism Acetobacter xylinum. Microscopically an irregular mass of fibrils that resemble threads. In order for the quality Nata results, the media are adjusted to the growth requirements (physical-chemical properties of the media) of the bacteria A.xylinum. Nata de coco without ZA with 10 days fermentation time produces the best yield with a thickness of 1.1 cm and a weight of 600 grams. Whereas the nata de tomato with ZA gives the best yield with a thickness of 0.5 cm at 10 days fermentation time. This shows that the thickness of nata de coco with nata de tomato is different. Influenced by variations in substrate and material composition. In nata de tomato, nata tomato extract is mixed with water in a ratio of 1: 4. This is what causes the yield of nata de tomato and coco to be different. Nutrient or glucose content in tomato juice is less than the glucose content in nata de coco. Organoleptic test results concluded that: 1) Panelists preferred nata with a chewy texture obtained from nata de coco on the 10th day, 2) Panelists preferred nata de coco or tomato with a non-sour aroma because when harvested, nata was washed and then boiled for 20 minutes at 100 ° C so that the acid aroma of the nata disappears during washing and boiling.3) Panelists prefer nata with good taste because the difference in fermentation time produces relatively similar delicious nata flavors..
Penerapan Constructive Controversy dan Modified Free Inquiry Terhadap HOTS Mahasiswa Pendidikan Biologi Rosa Dewi Pratiwi
Formatif: Jurnal Ilmiah Pendidikan MIPA Vol 4, No 2 (2014): Formatif: Jurnal Ilmiah Pendidikan MIPA
Publisher : Lembaga Penelitian dan Pengabdian Masyarakat Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (467.426 KB) | DOI: 10.30998/formatif.v4i2.144

Abstract

The aims of this study was to determine the effect of the using Constructive Controversy (CC) and Modified Free Inquiry (MFI) Method, analytical skill, and it’s interaction toward biology students’ cognitive learning achievement and HOTS. The method used in the research was experimental method and it was conducted from November 2013 to January 2014. The population was the biology students in UNINDRA. The sample was consisted of three class R3A, R3B and R3C. The learning method applied to R3A was MFI, R3B was control and to R3C was CC. The data was collected through students’ cognitive learning achievement test, analytical skills test, HOTS test, and supported by questioner for measuring affective achievements and observation sheet for assessing psychomotor. The hypothesis was tested using parametric statistic. The finding showed that: 1) There was significant difference from the results of two compared learning methods towards students’ cognitive learning achievement and HOTS, 2) Analytical skills affected students’ cognitive learning achievement and HOTS, 3) There was interaction between learning method and analytical skills toward student s’ cognitive learning achievement and HOTS.
Penyuluhan Pembuatan Yogurt sebagai Makanan Sehat pada Ibu-Ibu Majelis Ta’lim di Kelurahan Kukusan, Kecamatan Beji, Kota Depok Emilda Emilda; Rosa Dewi Pratiwi
Jurnal Pengabdian Masyarakat Biologi dan Sains Vol 1, No 1 (2022): Jurnal Pengabdian Masyarakat Biologi dan Sains
Publisher : Universitas Indraprasta PGRI

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (888.946 KB) | DOI: 10.30998/jpmbio.v1i1.951

Abstract

Dairy consumption in Indonesia is still low compared to other countries. One way to increase it by dairy processing into other forms such as yogurt. Yogurt has high nutritional and health benefits. Therefore, this yogurt-making counseling activity was carried out to increase the consumption of healthy food for the community, especially those made from dairy. The purpose of this activity is to improve people knowledge about its benefits  and provide new skills to make their own yogurt that is more affordable and preferred. The target of the activity was the members of the Khotmul Qur-an Ta'lim Council and MT Yaumul Jumuah RT 03 RW 03 in Kukusan Village, Beji District, Depok. Based on the counseling activities showed that the participants were enthusiastic about the counseling held because it provided new knowledge and skills. And participants also understood the benefits and how to make yogurt at home as an alternative to healthy food.