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ANALISIS SENYAWA ATRAKTAN PADA PHYTOTELMATA YANG DIGUNAKAN SEBAGAI TEMPAT PERINDUKAN Aedes albopictus fita wahidah; Ilmiah, Sitti Nur; Alif, Trisnani Alif
JURNAL TERAS KESEHATAN Vol 6 No 2 (2023): Jurnal Teras Kesehatan
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat (LPPM) Politeknik Al Islam Bandung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.38215/jtkes.v6i2.115

Dengue Hemorrhagic Fever (DHF) has still one of the problem diseases in Indonesia. There has increased in dengue cases in several parts of Indonesia since January 2020 and in the midst of the COVID-19. Very little information about natural breeding sites of Aedes especially of the phytotelmata such as Bambusa sp., Neoregelia spectabilis, Musa paradisiaca, and Cocos nucifera. Other than physical factors of plants, it is suspected that there are attractive compounds produced by these plants. The purpose of this study was to determine the chemical compounds that are attractants from plants used as breeding sites for Ae. albopictus. The research method was started by observation of the presence of Neoregelia spectabilis, Musa paradisiaca, Bambusa sp., and Cocos nucifera plants which contained Ae. albopictus on one of the plant body parts found. Then macerated, purified and analyzed for chemical content using GCMS. The results showed that there were differences in the chemical compounds of plants. The dominant chemical compound is tetracosane. Tetracosane is a chemical compound from the Alkane group. The alkana is an important role in plant interactions such as attractants in the oviposition of certain insects or as attractants for insect feeding activities.

PENGARUH pH DAN SUHU TERHADAP KEMAMPUAN ENZIM BROMELIN UNTUK MENGGUMPALKAN SUSU [THE EFFECT OF pH AND TEMPERATURE ON THE ABILITY OF BROMELAIN ENZYME TO COAGULATE MILK] Af'idah, Nurul; Ilmiah, Sitti Nur
FaST - Jurnal Sains dan Teknologi (Journal of Science and Technology) Vol. 7 No. 2 (2024): MAY
Publisher : Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/jstfast.v8i1.8144

Pineapple (Ananas comosus L.) is a fruit belonging to the Bromeliaceae family. The pineapple plant (Ananas comosus L.) contains bromelin enzyme which can be used as a substitute for the enzyme renin (rennet) as a milk coagulant agent. This research aims to determine the effect of pH and temperature on the speed of the bromelin enzyme's ability to coagulate milk, as well as determine the best pH and temperature on the speed of the bromeline enzyme's ability to coagulate milk. This research uses a factorial with a Completely Randomized Design (RAL-F) pattern consisting of 2 factors, the first factor is pH (K), K1 = pH 6 (acid) Ì¸ test tube; K2 = pH 7 (neutral) Ì¸ test tube; K3 = pH 8 (alkaline) Ì¸ test tube. Furthermore, the second treatment is temperature (D), D1 = temperature 60°C Ì¸ test tube; D2 = temperature 40°C Ì¸ test tube; D3 = temperature 50°C Ì¸ test tube. Each factor consists of 3 treatment levels, the total number of treatment combinations is 9 and each treatment combination is repeated 3 times. The results of the research show that there is an influence between providing variations in pH and temperature on the speed of the bromelin enzyme's ability to coagulate milk. The fastest average speed of milk coagulation time was in the K2D3 treatment (pH 7 temperature 50°C), namely 19.33 minutes, so it can be said that the best treatment was the pH and temperature in the K2D3 treatment (pH 7 temperature 50°C).Bahasa Indonesia Abstract:Nanas (Ananas comosus L.) merupakan salah satu buah yang termasuk dalam famili Bromeliaceae. Tanaman nanas (Ananas comosus L.) mengandung enzim bromelin yang dapat dijadikan sebagai pengganti enzim renin (rennet) untuk agen koagulan susu. Penelitian ini bertujuan menentukan pengaruh pH dan suhu terhadap kecepatan kemampuan enzim bromelin dalam koagulasi susu, serta menentukan pH dan suhu terbaik terhadap kecepatan kemampuan enzim bromein dalam koagulasi susu. Penelitian ini menggunakan faktorial dengan pola Rancangan Acak Lengkap (RAL-F) yang terdiri atas 2 faktor, faktor pertama yaitu pH (K), K1 = pH 6 (asam) Ì¸ tabung reaksi; K2 = pH 7 (netral) Ì¸ tabung reaksi; K3 = pH 8 (basa) Ì¸ tabung reaksi. Selanjutnya, perlakuan kedua yaitu suhu (D), D1 = suhu 60°C Ì¸ tabung reaksi; D2 = suhu 40°C Ì¸ tabung reaksi; D3 = suhu 50°C Ì¸ tabung reaksi. Masing-masing faktor terdiri atas 3 taraf perlakuan, jumlah total kombinasi perlakuan sebanyak 9 dan setiap kombinasi perlakuan diulang sebanyak 3 kali. Hasil penelitian menunjukkan bahwa terdapat pengaruh antara pemberian variasi pH dan suhu terhadap kecepatan kemampuan enzim bromelin dalam koagulasi susu. Rata-rata kecepatan waktu koagulasi susu tercepat terdapat pada perlakuan K2D3 (pH 7 suhu 50°C) yaitu 19.33 menit, sehingga dapat dikatakan bahwa perlakuan terbaik adalah pH dan suhu pada perlakuan K2D3 (pH 7 suhu 50°C).

Pengaruh Audio Suara Kucing terhadap Intensitas Serangan Hama Tikus (Rattus spp.) di Pertanaman Jagung (Zea Mays L.) Fita Fitriatul Wahidah; Rahmah Arfiyah Ula; Sitti Nur Ilmiah; Lilik Erviani; Merinda Nur Indahsari; Nabilatul Hamidah
Botani : Publikasi Ilmu Tanaman dan Agribisnis Vol. 3 No. 1 (2026): Januari : Botani : Publikasi Ilmu Tanaman dan Agribisnis
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/botani.v3i1.552

Continuous chemical control of rat pests (Rattus spp.) can sometimes lead to resistance and resurgence problems, and even some cases of inaccurate targeting ultimately killing livestock. The idea of repelling rats in rice fields using vibrations of crickets and other natural animals transmitted via radio has been done and the results are quite optimal for rat control, but it has not been done in corn cultivation. The purpose of this study was to determine the effect of cat sound audio on the intensity of rat pest attacks (Rattus spp.) in corn (Zea mays L.) plantations. The research location was in a farmer's land owned by a farmer in Dagan Village, Solokuro District, Lamongan Regency. Determination of sampling points using the diagonal method, each into 5 sub-observation plots. In each sub-plot, markers were placed as sampling points. Audio with cat and bird sounds was played continuously from 05.00 pm - 07.00 am. Observations were conducted at 7:00 a.m. at all sampling points at 30 and 60 days after planting. Observations were conducted for three days using audio and three days without audio. Damage symptoms were observed directly at each sampling point. Corn plants showing symptoms were then recorded and analyzed using the Damage Intensity formula. Observations showed that the use of cat sound audio was able to reduce the level of rat infestation. At 30 days after planting, the damage percentage was reduced by 8.33%. Meanwhile, at 60 days after planting, the damage percentage was reduced by 18.33%.

PENGARUH pH DAN SUHU TERHADAP KEMAMPUAN ENZIM BROMELIN UNTUK MENGGUMPALKAN SUSU [THE EFFECT OF pH AND TEMPERATURE ON THE ABILITY OF BROMELAIN ENZYME TO COAGULATE MILK] Nurul Af'idah; Sitti Nur Ilmiah
FaST : Jurnal Sains dan Teknologi Vol. 8 No. 1 (2024): MAY
Publisher : Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/jstfast.v8i1.8144

Pineapple (Ananas comosus L.) is a fruit belonging to the Bromeliaceae family. The pineapple plant (Ananas comosus L.) contains bromelin enzyme which can be used as a substitute for the enzyme renin (rennet) as a milk coagulant agent. This research aims to determine the effect of pH and temperature on the speed of the bromelin enzyme's ability to coagulate milk, as well as determine the best pH and temperature on the speed of the bromeline enzyme's ability to coagulate milk. This research uses a factorial with a Completely Randomized Design (RAL-F) pattern consisting of 2 factors, the first factor is pH (K), K1 = pH 6 (acid) Ì¸ test tube; K2 = pH 7 (neutral) Ì¸ test tube; K3 = pH 8 (alkaline) Ì¸ test tube. Furthermore, the second treatment is temperature (D), D1 = temperature 60°C Ì¸ test tube; D2 = temperature 40°C Ì¸ test tube; D3 = temperature 50°C Ì¸ test tube. Each factor consists of 3 treatment levels, the total number of treatment combinations is 9 and each treatment combination is repeated 3 times. The results of the research show that there is an influence between providing variations in pH and temperature on the speed of the bromelin enzyme's ability to coagulate milk. The fastest average speed of milk coagulation time was in the K2D3 treatment (pH 7 temperature 50°C), namely 19.33 minutes, so it can be said that the best treatment was the pH and temperature in the K2D3 treatment (pH 7 temperature 50°C).Bahasa Indonesia Abstract:Nanas (Ananas comosus L.) merupakan salah satu buah yang termasuk dalam famili Bromeliaceae. Tanaman nanas (Ananas comosus L.) mengandung enzim bromelin yang dapat dijadikan sebagai pengganti enzim renin (rennet) untuk agen koagulan susu. Penelitian ini bertujuan menentukan pengaruh pH dan suhu terhadap kecepatan kemampuan enzim bromelin dalam koagulasi susu, serta menentukan pH dan suhu terbaik terhadap kecepatan kemampuan enzim bromein dalam koagulasi susu. Penelitian ini menggunakan faktorial dengan pola Rancangan Acak Lengkap (RAL-F) yang terdiri atas 2 faktor, faktor pertama yaitu pH (K), K1 = pH 6 (asam) Ì¸ tabung reaksi; K2 = pH 7 (netral) Ì¸ tabung reaksi; K3 = pH 8 (basa) Ì¸ tabung reaksi. Selanjutnya, perlakuan kedua yaitu suhu (D), D1 = suhu 60°C Ì¸ tabung reaksi; D2 = suhu 40°C Ì¸ tabung reaksi; D3 = suhu 50°C Ì¸ tabung reaksi. Masing-masing faktor terdiri atas 3 taraf perlakuan, jumlah total kombinasi perlakuan sebanyak 9 dan setiap kombinasi perlakuan diulang sebanyak 3 kali. Hasil penelitian menunjukkan bahwa terdapat pengaruh antara pemberian variasi pH dan suhu terhadap kecepatan kemampuan enzim bromelin dalam koagulasi susu. Rata-rata kecepatan waktu koagulasi susu tercepat terdapat pada perlakuan K2D3 (pH 7 suhu 50°C) yaitu 19.33 menit, sehingga dapat dikatakan bahwa perlakuan terbaik adalah pH dan suhu pada perlakuan K2D3 (pH 7 suhu 50°C).

Revitalisasi Kesadaran Masyarakat dalam Pemilahan Sampah melalui Edukasi Lingkungan di Desa Karangtawar, Kabupaten Lamongan Rahmah Arfiyah Ula; Fita Fitriatul Wahidah; Lilik Erviani; Merinda Nur Indahsari; Sitti Nur Ilmiah; Muhammad Subhan
Pemberdayaan Masyarakat : Jurnal Aksi Sosial Vol. 3 No. 2 (2026): Juni: Pemberdayaan Masyarakat : Jurnal Aksi Sosial
Publisher : Lembaga Pengembangan Kinerja Dosen

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62383/aksisosial.v3i2.3283

Waste management issues remain an environmental challenge that requires active community involvement, particularly in the practice of waste sorting from the source. Although the community has received education regarding waste management, consistency in implementing waste sorting behavior often declines over time. This community service activity aims to revitalize awareness and reinforce community behavior in conducting waste sorting in Karangtawar Village, Lamongan Regency. The activity was carried out on August 25, 2023, involving 26 participants consisting of youth organization members, village officials, and PKK members. The method used was an educational-participatory approach through counseling, waste sorting demonstrations, and interactive discussions. Data were collected through observation, documentation, and field notes, and then analyzed descriptively in a qualitative manner. The results of the activity indicate high participation and enthusiasm from the participants throughout the event. Participants were able to understand the differences between organic, inorganic, and recyclable waste, and demonstrated increased awareness of the importance of waste sorting. As a follow-up, separated waste bins were provided to support the implementation of waste sorting behavior within the community. Nevertheless, the sustainability of waste sorting behavior still requires ongoing guidance and reinforcement. This activity demonstrates that an educational-participatory approach is effective in enhancing public understanding and awareness of sustainable waste management.

Struktur Komunitas Fitoplankton Pada Ekowisata Air Silowo Kabupaten Tuban, Provinsi Jawa Timur Merinda Nur Indahsari; Rahmah Arfiyah Ula; Fita Fitriatul Wahidah; Lilik Erviani; Sitti Nur Ilmiah
Indonesian Journal of Innovation Multidisipliner Research Vol. 4 No. 3 (2026): Juli - September
Publisher : Institute of Advanced Knowledge and Science

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.69693/ijim.v4i3.1832

Ekowisata air Silowo merupakan destinasi wisata alam yang berada pada Desa Mandirejo Kecamatan Merakurak Kabupaten Tuban Promosi yang masif ini menyebakan terjadinya lonjakan pengunujung wisata. Akitivitas dari kunjungan wisata dan pembangunan ini dapat menybabkan tumpukan sampah dan kejernihan air Dampak yang dapat ditimbulkan dalam hal ini diduga dapat mempengaruhi biota perairan. Fitoplankton adalah satu biota yang terdampak dari aktivitas tersebut. Fitoplantton sangat sensitif terhadap perubahan lingkungan. Perubahan kualitas lingkungan akan memengaruhi komposisi jenis, kelimpahan, keanekaragaman, keseragaman, dan dominansi fitoplankton Informasi mengenai struktur komunitas fitoplankton di Ekowisata Air Silowo masih sangat terbatas, Perlunya adanya kajian tenttang struktur komunitas fitoplankton di ekowisata Silowo. Pengambilan sampel fitoplankton di Ekowisata Silowo, Kabupaten Tuban, dilakukan pada empat titik stasiun pengamatan pada bulan Mei 2026. Pengamatan fitoplankton dilakukan menggunakan mikroskop, sedangkan proses identifikasi dilakukan berdasarkan buku Freshwater Algae: Identification and Use as Bioindicators, basis data Algabase, dan buku The Plankton of South Vietnam: Fresh Water and Marine Plankton. Perhitungan kelimpahan fitoplankton dilakukan menggunakan Sedgewick-Rafter counting chamber. Analisis struktur komunitas fitoplankton dilakukan berdasarkan nilai indeks keanekaragaman (H’), indeks kemerataan (E), dan indeks dominansi (C) Komposisi fitoplankton yang ditemukan di perairan Silowo terdiri atas 12 jenis yang tergolong ke dalam empat kelas, yaitu Chlorophyceae, Bacillariophyceae, Cyanophyceae, dan Zygnematophyceae. Indeks keanekaragaman 1,986, Indeks Kemerataan 0,799, dan Indeks Dominansi 0,196. Berdasarkan hasil analisis indeks ekologi, kondisi ekosistem perairan Silowo tergolong cukup stabil.

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