Pendahuluan: Tomat (Lycopersicon esculentum Mill.) mengandung beragam vitamin dan mineral yang bermanfaat untuk meningkatkan sistem imun tubuh manusia. Vitamin C merupakan salah satu antioksidan yang berharga dalam buah ini. Kandungan vitamin C pada buah tomat segar secara dinamis dipengaruhi oleh faktor fisiologis selama fase pertumbuhannya. Tujuan: Penelitian ini bertujuan mengevaluasi profil kadar vitamin C pada tiap fase kematangan buah yang diukur berdasar hari setelah tanam sebagai acuan waktu panen yang tepat untuk mendaptkan kadar vitamin C yang optimal. Metode: Evaluasi vitamin C dilakukan secara kualitatif menggunakan reagen KMnO4, FeCl3, dan AgNO3, sedangkan nilai kuantitatif diukur dengan metode titrasi iodimetri untuk tiga replikasi. Buah tomat segar sebanyak 100 g digunakan sebagai sampel, untuk tiap fase kematangan dipanen pada hari ke 45 dengan interval 3 hari hingga 72 hari setelah tanam. Hasil: Uji kualitatif mengindikasikan keberadaan vitamin C pada tiap sampel penelitian. Hasil uji kuantiatif menunjukkan bahwa kadar vitamin C mulai meningkat pada 45 hingga 63 hari setelah tanam, kemudian menurun hingga 72 hari setelah tanam. Sampel tomat yang diambil pada 63 hari setelah tanam mengandung vitamin C tertinggi sebesar 21,29 mg/100g. Fluktuasi vitamin C pada tomat segar dipengaruhi oleh tingkat kematangan buah dan faktor lain seperti iklim dan kondisi lingkungan selama masa pertumbuhan buah. Kesimpulan: Vitamin C buah tomat segar mencapai kadar optimum merespon proses pematangan dan kondisi iklim selama masa pertumbuhannya. Untuk mendapatkan asupan vitamin C terbaik dari konsumsi buah tomat segar, direkomendasikan agar buah tomat dipanen pada 63 hari setelah tanam yang menunjukkan puncak kadar vitamin C.
Negeri Hatu is an area at the level of a village or sub-district located in Central Maluku Regency, Maluku Province. Negeri Hatu is located far from the city center and the center of the Maluku Tengah regency government, resulting in no reach of waste management services from the local DLH. The absence of waste management facilities in this area was reinforced by the lack of public awareness about environmental cleanliness which triggered the idea of establishing a waste bank by the manager of the Hasoma smart home. The waste bank that was established was an implementation of environmental literacy to the community in Hatu Country. The waste bank has had a significant impact on environmental change and the improvement of the community's economy. However, this needs to be studied further in accordance with the context of the character of the community in each region. The purpose of this study was to evaluate the effectiveness of environmental literacy through waste banks and to analyze the potential of waste banks in improving environmental quality in Hatu Country. The research was conducted with a qualitative descriptive approach where data were taken from in-depth interviews and analyzed to obtain a value for the effectiveness of the activity. The results showed that the environmental literacy practice implemented by the Hasoma smart house was able to open people's environmental insight in terms of the impact of waste on health, the importance of sorting waste according to its type and increasing participation in caring for environmental cleanliness. Waste banks are able to reduce domestic waste generation by 0.17% in Hatu Country and are able to reduce carbon emissions by 2702.35 gCO per month. The activities of the waste bank at Hasoma Hatu's smart home can change the social community in Negeri Hatu. This change can be seen from the high participation of the younger generation in the initial weighing of the waste bank.
Salah satu sentra produksi nanas di Jawa Timur adalah di Dusun Puhrejo, Kecamatan Ngancar, Kabupaten Kediri. Nanas yang dihasilkan dijual dalam bentuk buah segar dan olahan, contohnya adalah sari nanas. Kualitas produk olahan sari nanas masih kurang maksimal sehingga pada kegiatan ini diberikan pengetahuan dan pelatihan tentang cara pengolahan buah nanas dalam bentuk minuman berserat. Minuman berserat dibuat dari campuran buah nanas yang kaya nutrisi dan nata de coco yang mengandung serat alami. Penambahan nata de coco juga berfungsi sebagai penstabil (emulsifier) agar produk minuman yang dihasilkan memiliki mutu yang lebih baik dan daya simpan yang lebih lama. Terdapat 2 tahapan kegiatan yang diikuti oleh 25 warga Dusun Puhrejo, yaitu penyuluhan dan pelatihan. Hasil yang diperoleh dari kegiatan ini adalah adanya peningkatan pengetahuan peserta mengenai pemanfaatan dan cara pengolahan nanas yang tepat sehingga tidak mengurangi kandungan gizi di dalamnya. Minat peserta untuk mengembangkan produk olahan nanas juga meningkat karena produk yang dihasilkan dapat memberi nilai tambah buah nanas. Produk olahan yang diperoleh dari kegiatan ini juga dijadikan produk unggulan UMKM Dusun Puhrejo. Training on produce a healthy beverage from pineapple fruits and nata de coco AbstractOne of the pineapple production centers in East Java is in Puhrejo village, Ngancar, Kediri. The pineapple was sold in the fresh and processing fruits, like pineapple juice. But the pineapple juice has low quality so this activity gave information and training about how to process pineapple to be a healthy beverage product. A healthy beverage produced from pineapple that contains many nutritions and nata de coco that contain natural fibre. The aim of addition nata de coco is as emulsifier therefore the beverage obtained from this project has better quality and longer shelf life. The activity was attended by 25 Puhrejo village residents and used two steps, that are counselling and training. The result of the activity is an increase in the community’s knowledge about the potential of pineapple and the right processing of it so the nutrition did not decrease. The desire of the community to process pineapple into a variety of products also increased because that product can provide added value to pineapple. The healthy beverage product from this activity will be a superior product from UMKM of Puhrejo village
Kediri is well known as a city of cigarette, sugar refinery, and tofu industries. This condition has an impact on high waste disposal to the environment such as rivers. One of the cases in Dermo village Kediri, where the river water turned black and well water turn yellow, high turbidity and smelly when the factory worked. The solution to provide a healthy sanitary water is the use of membrane for filtering the water. Chitosan from Pila ampullacea shell, PVA and PEG were mixed to make a membrane. The purpose of this study was to analyze the effectiveness of chitosan membranes as polluted well water filters. Twelve samples of water collected from the wells at a distance in range 10 meters from the river aseptically. Then the water was filtered using the membrane that varies 1, 2, 3, 4 mm thickness. This research compared the water quality before and after filtered by membrane. Temperature, Total Dissolved Solid (TDS), pH, Dissolved oxygen, Dissolved CO2 and bacterial presence parameters were measured. The result show that chitosan membrane with 4 mm thickness had the most effective membrane to filter and provide the best water quality.
Acne (acne vulgaris) is a skin disease caused by infection or inflammation of the pilosebaceous unit. Staphylococcus aureus and Prapionibacterium acnes was the main actor in the infection. Eco-enzyme that is made from pineapple peel has been stated that have inhibitory activity against gram-positive and negative bacteria, also applied as home industry soap. This study objective as scientific support that Eco-enzyme phytochemical compounds had the antibacterial activity to the acne bacteria. Eco-enzyme was composed of pineapple peel, brown sugar, and water with the ratio of 3:1:10 for 3 months fermentation time. Eco-enzyme was screened of its phytochemical compound and antibacterial activity against S.aureus and P.acnes by dilution with various concentrations (1.5625%, 3, 125%, 6.25%, 12.5%, 25%, and 50% v/v) and various control. The minimum inhibition concentration (MIC) was then tested by diffusion method to determine the inhibition zone with 3 replication using the higher concentration (50%, 75%, 100% v/v). The result showed that eco-enzyme has a clear yellow colour, contains tannin and saponin, MIC of S.aureus and P.acnes bacteria is 50%. The dilution test of eco-enzyme gives the most effective concentration to inhibit S.aureus at eco-enzyme 100% (v/v), contrasted to P. acnes which didn’t show the best inhibition concentration.
Pandemi covid-19 telah berlangsung selama hampir 2 tahun yang diperkirakan akan menjadi krisis berkepanjangan yang berpotensi menimbulkan gagal pangan dan terjadi kelaparan yang meluas. Situasi ini dapat diselesaikan salah satunya dengan program ketahanan pangan. Perusahaan memiliki kewajiban social pada masyarakat di sekitar wilayah operasional dalam bentuk Corporate Social Responsibility (CSR). CSR diharapkan dapat berkontribusi dalam mengatasi krisis pangan masyarakat terdekat. Program ini bertujuan untuk mengevaluasi program hidroponik yang dicanangkan oleh PT Pertamina (Persero) DPPU Adi Sumarmo di wilayah operasional perusahaan dan menganalisis kebutuhan optimalisasi peran CSR dalam memaksimalkan dampak kebermanfaatan program. Program ini dilaksanakan di desa Tanjungsari, Ngemplak Boyolali dengan masyarakat sasaran kelompok pengurus masjid Tanjungsari, ibu-ibu jama’ah, dan pemuda masjid. Metode penggalian informasi dengan cara participatory rural appraisal (PRA). Program berhasil meresmikan Rumah Hidroponik Masithoh sebagai kelompok binaan perusahaan dan telah aktif melaksanakan kegiatan rutin bulanan dari menyemai bibit hingga panen sayur. Jenis sayur yang berhasil dikembangkan oleh kelompok meliputi selada, bayam hijau, kangkung, pakcoy, selada merah dan sawi dengan rata-rata persentase hasil panen terbanyak sayur kangkung (29,9%). Kelompok Rumah Hidroponik Masithoh juga menjalankan inovasi sosial dalam bentuk “sedekah sayur” sebagai aksi solidaritas ketahanan pangan di tengah pandemic Covid-19. Optimalisasi peran CSR yang telah diterapkan oleh perusahaan dalam mendukung kelompok binaan antara lain sosialisasi, penyuluhan, pemberian bantuan modal dan fasilitas, pelatihan serta pendampingan.
Pandemi covid-19 telah berlangsung selama hampir 2 tahun yang diperkirakan akan menjadi krisis berkepanjangan yang berpotensi menimbulkan gagal pangan dan terjadi kelaparan yang meluas. Situasi ini dapat diselesaikan salah satunya dengan program ketahanan pangan. Perusahaan memiliki kewajiban social pada masyarakat di sekitar wilayah operasional dalam bentuk Corporate Social Responsibility (CSR). CSR diharapkan dapat berkontribusi dalam mengatasi krisis pangan masyarakat terdekat. Program ini bertujuan untuk mengevaluasi program hidroponik yang dicanangkan oleh PT Pertamina (Persero) DPPU Adi Sumarmo di wilayah operasional perusahaan dan menganalisis kebutuhan optimalisasi peran CSR dalam memaksimalkan dampak kebermanfaatan program. Program ini dilaksanakan di desa Tanjungsari, Ngemplak Boyolali dengan masyarakat sasaran kelompok pengurus masjid Tanjungsari, ibu-ibu jama’ah, dan pemuda masjid. Metode penggalian informasi dengan cara participatory rural appraisal (PRA). Program berhasil meresmikan Rumah Hidroponik Masithoh sebagai kelompok binaan perusahaan dan telah aktif melaksanakan kegiatan rutin bulanan dari menyemai bibit hingga panen sayur. Jenis sayur yang berhasil dikembangkan oleh kelompok meliputi selada, bayam hijau, kangkung, pakcoy, selada merah dan sawi dengan rata-rata persentase hasil panen terbanyak sayur kangkung (29,9%). Kelompok Rumah Hidroponik Masithoh juga menjalankan inovasi sosial dalam bentuk “sedekah sayur” sebagai aksi solidaritas ketahanan pangan di tengah pandemic Covid-19. Optimalisasi peran CSR yang telah diterapkan oleh perusahaan dalam mendukung kelompok binaan antara lain sosialisasi, penyuluhan, pemberian bantuan modal dan fasilitas, pelatihan serta pendampingan.
The use of anorganic fertilizers is most popular among farmers, the lack of subsidies from the government for anorganic fertilizers so that the scarcity of fertilizers becomes important problem for farmers. The purpose of this activity is to assist farmers in the use of photosynthetic bacteria as fertilizers for plants. The method used is in the form of counseling, and mentoring in the practice of cultivated bacterial photosynthesis for application in fields. The results of the activities showed that before the training the majority of trainees (82.5%) did not know and understand photosynthetic bacterial fertilizers, after training the majority of trainees (80.4%) knew and understood, and were skilled in making and using photosynthetic bacteria. Participation and enthusiasm were shown by the participants during the activity.
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