Judul: Pemanfaatan Jahe (Zingiber officinale Rosc.) dan Teh Hijau (Camelia sinensis) Dalam Pembuatan Selai Rendah Kalori dan Sumber Antioksidan
Abstrak: Tujuan umum penelitian ini adalah untuk mempelajari pembuatan selai jahe-teh hijau rendah kalori dan sumber antioksidan. Tujuan khusus penelitian ini adalah 1) mempelajari pembuatan selai jahe-teh hijau dengan proporsi jahe dan ekstrak teh hijau yang optimal, 2) mempelajari pengaruh proporsi jahe : ekstrak teh hijau terhadap sifat kimia dan fisik selai jahe-teh hijau, 3) mempelajari pengaruh proporsi jahe : ekstrak teh hijau terhadap daya terima selai jahe-teh hijau, 4) menganalisis kadar senyawa antioksidan (gingerol dan katekin) yang terkandung dalam selai jahe-teh hijau terbaik, 5) mempelajari pengaruh lama penyimpanan terhadap sifat kimia, fisik, dan mikrobiologis selai jahe-teh hijau, dan 6) mempelajari pengaruh lama penyimpanan terhadap daya terima selai jahe-teh hijau.
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Judul: Formulasi, Karakterisasi Kimia Dan Uji Aktivitas Antioksidan Produk Minuman Fungsional Tradisional Sari Jahe (Zingiber Officinale Rose.) dan Sari Sereh Dapur (Cymbopogon flexuosus)
Abstrak: Selain food supplement, akhir-akhir ini makin akrab di telinga kita makanan dan minuman fungsional (fungsional foods). Makanan fungsional semakin populer seiring dengan semakin tingginya kepedulian masyarakat untuk menjaga kesehatan. Salah satu penyebab gangguan kesehatan yang ada adalah proses oksidasi di dalam tubuh. Kerusakan ini dapat dicegah dengan mengkonsumsi antioksidan. Sumber antioksidan alami yang telah banyak diteliti adalah rempah-rempah, dan penggunaan senyawa alami mempunyai kelebihan karena lebih aman untuk dikonsumsi. Dengan jumlah produksi dan jenis rempah-rempah yang besar, Indonesia berpotensi untuk menjadi negara produsen minuman fungsional antioksidan alami. Adapun tujuan penelitian ini adalah untuk menentukan SOP (Standard Operation Procedure); memformulasikan produk minuman fungsional tradisional; pemilihan 3 formula yang terbaik melalui uji organoleptik yang meliputi uji hedonik dan uji ranking; menguji karakterisitk kimia yang meliputi pH, total asam tertitrasi (TAT), total padatan terlarut, total fenol; serta menguji aktivitas antioksidan dari produk minuman fungsional tradisional sari jahe dan sari sereh dapur secara in vitro dengan menggunakan metode dien terkonjugasi (dengan modifikasi).
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Judul: Biology and ecology of the buffalo fly, haematobia exigua de meijere (diptera:muscidae)
Abstrak: The life history of the buffalo fly was observed at room temperature of 27°-29.5°C and at a relative humidity of 48-68 percent. The eggs hatched after 17-22 hours, with an average of 18 hours. First instar larvae measured 1.25 + 0.16 mm long and 0.27 + 0.037 mm wide. reach the second larval stage. It took 6-12 hours to the second instar larvae measured 2.676 +0.187 mm long and 0.353 +0.028 mm wide. The second instar took about 12-24 hours to reach the third larval stage. The third instar measured 6.833 + 0.189 mm long and 0.919 + 0.051 mm wide. It took about 2-3 days for the third instar to become pupae. Duration of the pupal stage was about 5-7 days before the adults emerged. Under laboratory condition, the buffalo fly completed its life cycle in 9.5 to 10.5 days, whereas under field condition it took 9-14 days with an average of 10.5 days. The growth ratio which was based on the measurements of the cephalo-pharyngeal skeleton of each instar was 1.797. The preoviposition period was 8-12 days and mating usually occurred on the 6th or 7th day. The longevity of the male was 29 days, whereas it was 32 days in the female. The range of egg production under laboratory condition was between 20-139 per female fly. The belly and hind legs of the carabao were the most preferred habitat either during cloudy and cool dry or shiny and warm day. When the weather was clear and the carabao was in the shade, the flies tended to be more distributed particularly on the shoulder, dewlap, back and horns. The carabaos had relatively fewer Musca sp. and Stomoxys calcitrans than cattle; never the less carabaos had a higher infestation of buffalo fly than cattle. Oviposition occured either during the day or night but the buffalo flies were more active during the night than in the day time. The effect of various lengths of exposure time of manure in relation to the oviposition was profound. observed, the maximum number of the buffalo flies was occurred when the dung was exposed for 30 minutes. With increasing time of exposure the number and variety of insects also increase. It was evident that Sepsidae and psychodidae were the most dominant insects emerging from the dung. The number of buffalo flies also increased with increasing
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