Pengaruh Dua Siklus Autoclaving-Cooling Terhadap Kadar Pati Resisten Tepung Beras dan Bihun yang Dihasilkannya Effects of Two-Cycle Autoclaving-Cooling on Resistant Starch Content of Rice Flour and the Resulted Rice Noodle
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Abstract
Beras merupakan salah satu komoditas pangan terpenting di Indonesia karena merupakan makanan pokok sebagian besar penduduk Indonesia. Namun sampai saat ini produktivitas tanaman padi masih rendah dan belum dapat memenuhi kebutuhan secara keseluruhan. Oleh karena itu, perlu upaya nyata untuk meningkatkan hasil panen tanaman padi. Penelitian ini bertujuan untuk mengetahui pengaruh pemberian unsur hara silika (Si) dalam ukuran nano yang diisolasi dari sekam padi terhadap pertumbuhan, respon morfologi dan fisiologi serta produktivitas tanaman padi sawah. Perlakuan yang diberikan terdiri atas pemberian pupuk SiP 300 kg/ha (S2), pemberian nano silika koloid 10 ppm (S3), 20 ppm (S4), 30 ppm (S5) dan kontrol/tanpa silika (S1). Berdasarkan hasil penelitian ini disimpulkan bahwa pemberian nano silika koloid 20 ppm dan 30 ppm secara umum memberikan pengaruh yang terbaik pada pertumbuhan, respon morfologi, fisiologi dan produktivitas tanaman padi kecuali pada jumlah stomata.
Rice is one of the most important staple food commodities in Indonesia. So far, however, the productivity of rice is still low and has not been able to meet the overall domestic needs. Therefore, a real effort to improve the harvest rice crops is urgently needed. This research aims to investigate the influence of silica (Si) nutrient elements, to be applied in nano size isolated from rice husk, on the growth, morphology and physiology responses as well as the productivity of the wet land rice. The treatment consists of the application of fertilizer SiP 300 kg/ha (S2), the colloid nano silica 10 ppm (S3), 20 ppm (S4), 30 ppm (S5) and kontrol/with no silica (S1). The results showed that the application of colloid nano silica 20 ppm and 30 ppm generally resulted in the best growth, morphological, physiological responses and productivity of the rice plant except for the number of stomata.
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