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ANALISIS KANDUNGAN BORAKS PADA MAKANAN: STUDI KASUS DI WILAYAH KECAMATAN PAMULANG, TANGERANG SELATAN Maman Rumanta; Krisna Iryani; Anna Ratnaningsih
Jurnal Matematika Sains dan Teknologi Vol. 17 No. 1 (2016)
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33830/jmst.v17i1.186.2016

Abstract

This study aimed to analyze borax content in food and the effects of food processing on the content of borax in food. This research adopted a survey method. Food samples were obtained from the traditional and modern markets, elementary schools, and supermarkets available in the region of Pamulang Subdistrict. Sampling was done by using a purposive technique. Each sample was qualitatively analyzed for its borax content using a borax test kit. The detected food was then analyzed by using a qualitative analysis (i.e., there are four categories of data); one sample per category was taken to be analyzed quantitatively using the HPLC method in the Laboratorium of Balai Besar Pusat Penelitian dan Pengembangan Pascapanen Pertanian, Bogor. The treatment of food containing the highest level of borax) was conducted by boiling them during a certain period of time (i.e., 5 minutes, 15 minutes, and 30 minutes) and then frying them until well cooked (was not burnt). The collected data were then analyzed descriptively. The results showed that 54% of the samples obtained from the Elementary Schools positively contained borax; as much as 74% of the food samples obtained from traditional markets contained borax positively; while all samples coming from the supermarkets did not contain borax. The content of borax in the detected food in this research ranged between 560 mg/kg up to 17,640 mg/kg. The highest content of borax found in yellow wet noodles (17,640 mg/kg) was far above the maximum level specified by EFSA (2013), that is as much as 4,000 mg/kg. The boiling process was quite effective in lowering the level of borax in food, while the frying process did not actually reduce the level of borax in food. Penelitian ini bertujuan untuk menganalisis kandungan boraks pada makanan dan pengaruh pengolahan makanan terhadap kandungan boraks pada makanan. Penelitian ini dilakukan dengan metode survei. Jenis makanan yang dijadikan sampel dalam penelitian ini adalah jenis makanan yang diperoleh dari pasar tradisional dan modern, sekolah dasar, dan supermarket di wilayah Kecamatan Pamulang. Pengambilan sampel dilakukan dengan menggunakan teknik purposive sampling. Setiap sampel dianalisis kandungan boraksnya secara kualitatif menggunakan test kit boraks. Selanjutnya, makanan yang telah terdeteksi oleh analisis kualitatif (ada empat kategori data), diambil satu sampel per kategori untuk dianalisis secara kuantitatif menggunakan metode HPLC di Laboratorium Balai Besar Pusat Penelitian dan Pengembangan Pascapanen Pertanian, Bogor. Makanan yang terdeteksi mengandung boraks paling tinggi diperlakukan dengan cara direbus dalam beberapa rentang waktu (5 menit, 15 menit, dan 30 menit) dan digoreng sampai matang (tidak sampai gosong). Data yang dikumpulkan dianalisis secara deskriptif. Hasil penelitian menunjukkan bahwa 54% dari sampel makanan yang diperoleh dari Sekolah Dasar positif mengandung boraks; sebanyak 74% dari sampel makanan yang diperoleh dari pasar tradisional positif mengandung boraks; sementara semua sampel berasal dari supermarket tidak terdeteksi mengandung boraks. Kandungan boraks dalam makanan yang terdeteksi dalam penelitian ini berkisar antara 560 mg/kg sampai dengan 17.640 mg/kg. Kandungan tertinggi ditemukan dalam mie basah kuning (17.640 mg/kg) jauh di atas kadar maksimum yang ditentukan EFSA (2013) sebanyak 4.000 mg/kg. Proses perebusan cukup efektif dalam menurunkan kadar boraks dalam makanan, sedangkan proses penggorengan tidak mengurangi kadar boraks dalam makanan.
HUBUNGAN ANOPHELES BARBIROSTRIS DENGAN MALARIA Krisna Iryani
Jurnal Matematika Sains dan Teknologi Vol. 12 No. 1 (2011)
Publisher : LPPM Universitas Terbuka

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Malaria is a disease caused by intercellular obligate protozoa genus of Plasmodium which is a parasite carried by female Anopheles mosquito. One of them is Anopheles barbirostris. Research in several places already proved that Anopheles barbirostris acts as a vector of malaria. One case that occurred in Cineam district, Tasikmalaya regency showed that Anopheles barbirostris is suspected as vector of malaria. This is proven through a research on the relationship between Anopheles barbirostris with malaria. Data was taken from the larvae and adult mosquitoes captured around Cineam village, Tasikmalaya. The observation was done in the open field and laboratory. Data and identification by pictorial key for female Anopheles showed that the population of Anopheles barbirostris was always a dominant population compared to another Anopheles species. Because of the breeding ponds and the resting places were around the village, it is suspected that they mainly bit humans. The result of the observation in laboratory showed the life cycle of Anopheles barbirostris are around 20-27 days, and the longevity of 20 days. Morphological identification of Anopheles barbirostris by pictorial key for female Anopheles showed that there is no any significant difference. This research showed that Anopheles barbirostris was suspected as vector of malaria in Cineam village, Tasikmalaya.
Self-evaluation in Distance Education of Biology Program FKIP-Universitas Terbuka Leonard Raden Hutasoit; Anna Ratnaningsih; Krisna Iryani; Tri Wahyuningsih
Jurnal Penelitian Pendidikan IPA Vol. 9 No. 9 (2023): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i9.4043

Abstract

The purpose of this research is expected to help the S1 Biology Education Study Program FKIP-UT in improving academic and administrative services for users. In detail, the objectives of this study are: (1) The effectiveness of the services that have been provided by the Biology Education S1 Study Program FKIP-UT to service users; (2) Student services of the S1 Biology Education Study Program FKIP-UT; (3) Service user satisfaction of the S1 Biology Education Study Program FKIP-UT; (4) Characteristics of the learning process of the S1 Biology Education Study Program FKIP –UT; (5)  Learning experience of service users of  the S1 Biology Education Study Program FKIP-UT. The research used quantitative and qualitative methods. Quantitative methods are carried out by surveying all graduates/ students using questionnaires [letters, forms]. While the qualitative method was carried out for limited respondents who were randomly selected proportionally through [online] interviews. The results of this study include data analysis of the effectiveness of services that have been provided by the Biology Education S1 Study Program FKIP-UT to service users, as many as 62.4% are satisfied with the Subject Material Books used, 48.5% are online tutorials, 41.3% Webinars and 56.2% are final exams. As many as 62% of respondents already know the student services of the S1 Biology Education Study Program FKIP-UT regarding reasoning, interests and talents, 60% regarding career guidance and 45.8% regarding welfare and easy access.  Satisfaction with the learning experience in the S1 Biology Education Study Program, respondents were satisfied and very satisfied in discussions, tutorial assignments, practices and practicums. With respondents who are dissatisfied with academic and administrative services, it is necessary to improve services and socialization for those who have difficulty accessing services.
Self-evaluation in Distance Education of Biology Program FKIP-Universitas Terbuka Leonard Raden Hutasoit; Anna Ratnaningsih; Krisna Iryani; Tri Wahyuningsih
Jurnal Penelitian Pendidikan IPA Vol. 9 No. 9 (2023): September
Publisher : Postgraduate, University of Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jppipa.v9i9.4043

Abstract

The purpose of this research is expected to help the S1 Biology Education Study Program FKIP-UT in improving academic and administrative services for users. In detail, the objectives of this study are: (1) The effectiveness of the services that have been provided by the Biology Education S1 Study Program FKIP-UT to service users; (2) Student services of the S1 Biology Education Study Program FKIP-UT; (3) Service user satisfaction of the S1 Biology Education Study Program FKIP-UT; (4) Characteristics of the learning process of the S1 Biology Education Study Program FKIP –UT; (5)  Learning experience of service users of  the S1 Biology Education Study Program FKIP-UT. The research used quantitative and qualitative methods. Quantitative methods are carried out by surveying all graduates/ students using questionnaires [letters, forms]. While the qualitative method was carried out for limited respondents who were randomly selected proportionally through [online] interviews. The results of this study include data analysis of the effectiveness of services that have been provided by the Biology Education S1 Study Program FKIP-UT to service users, as many as 62.4% are satisfied with the Subject Material Books used, 48.5% are online tutorials, 41.3% Webinars and 56.2% are final exams. As many as 62% of respondents already know the student services of the S1 Biology Education Study Program FKIP-UT regarding reasoning, interests and talents, 60% regarding career guidance and 45.8% regarding welfare and easy access.  Satisfaction with the learning experience in the S1 Biology Education Study Program, respondents were satisfied and very satisfied in discussions, tutorial assignments, practices and practicums. With respondents who are dissatisfied with academic and administrative services, it is necessary to improve services and socialization for those who have difficulty accessing services.