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Tujuan dari artikel ini yaitu untuk mengetahui profil dari umbi uwi dan potensi aplikasinya pada produk pangan. Uwi (Dioscorea alata) merupakan tanaman umbi-umbian dengan bentuk batang bulat, daun tunggal berbentuk jantung dengan memiliki rambut akar yang pendek dan kasar. Warna dari daging umbi uwi yaitu berwarna putih dan ungu, teksturnya keras dan sangat bergetah. Kandungan karbohidrat dari umbi uwi tergolong tinggi yaitu berkisar 72,6-80,2% dari berat keringnya. Selain mengandung karbohidrat, umbi uwi juga mengandung komponen bioaktif seperti dioscin, dioscorin, allantoin, choline, polifenol, dan diosgenin. Bentuk granula umbi uwi rata-rata berbentuk oval, segitiga, bulat dan poligonal dengan ukuran 10-41,5 mm. Komposisi kimia dari umbi uwi yang tertinggi yaitu kandungan air dan pati. Pati uwi dapat dimanfaatkan menjadi berbagai produk olahan seperti mie instan, beras analog dan es krim. Kandungan indeks glikemik yang rendah menjadikan mie instan dari umbi uwi menjadi unggul dibandingkan dengan jenis mie instan lainnya. Selain itu, umbi uwi juga dapat diolah menjadi beras analog dengan kandungan karbohidrat yang cukup tinggi.

CATFISH MINICULTURE OFTEN CALLED AS “BUDIKDAMBER” HAS RAPIDLY GAINED ITS POPULARITY DURING COVID-19 PANDEMIC DUE TO FOLLOWING REASONS: EASY TO ADOPT AND AFFORDABLE. In this regard, we disseminated technical assistance of “budikdamber” to villagers in two villages: Montongsekar and Sugihwaras, which aimed at fostering the food production in households. The dissemination was carried out through three activities: (1) assembly of “budikdamber” unit, (2) assistance and observation, and (3) evaluation. The unit was assembled using 80 L-plastic container, and filled with about 60 L of freshwater. Catfish seeds (12 cm in length) were reared in the unit for 3 weeks. During the period, their growth (body length, in cm) and survival rate. At the end of period, questionnaires were asked to the participants. The results showed that “budikdamber” unit could be made simply, equipped with water outlet, allowing to change water without jeopardizing fish survival. The assistance and observation to the participants demonstrated a pivotal role in disseminating the technical aspects of the catfish miniculture. The aquculture of catfish using “budikdamber” resulted in a satisfying output, represented by high survival rate ranging from 94 - 100% and final fish size (16.82 - 17.90 cm ). For further consideration, we need to publicize the fish culture method using both offline and online approaches, enabling to deliver the benefits of this technique to broader scale. In conclusion, “budikdamber” could impose significant effect on our attempts in ensuring food security during covid-19 pandemic.

Produksi jagung di Madura memberikan andil besar terhadap total produksi jagung di Jawa Timur. Di tingkat nasional, BPS menunjukkan bahwa produksi jagung di Jawa Timur mencapai 6 juta ton, berkontribusi sebesar 31.3%, atau hampir sepertiga dari total produksi jagung nasional. Produksi jagung yang besar seharusnya didukung dengan kesiapan teknologi produksi untuk mengolahnya menjadi aneka produk turunan, seperti pati. Pati jagung adalah bahan strategis karena digunakan di berbagai sektor, khususnya pangan. Studi ini dilakukan untuk optimasi proses ekstraksi pati jagung Madura-3. Teknik optimasi dilakukan menggunakan desain rancangan d-optimal pada Response Surface Methodology (RSM). Kondisi optimasi meliputi lama perendaman (X1) dan konsentrasi NaOH (X2), dengan rentang sebagai berikut: X1 (12 jam – 36 jam) dan X2 (0.05 – 0.5%). Hasil uji statistik memperlihatkan bahwa model yang berhasil dikonstruksi dinyatakan signifikan, ditunjukkan dengan F value sebesar 7.30, dan Prob lebih dari F sebesar 0.0075 (P kurang dari 0.05). Selain itu, lack of fit adalah 0.45, memperlihatkan bahwa parameter ini tidak signifikan. Lack of fit yang tidak signifikan memang diinginkan. Selain itu, nilai adequate precision dari model mencapai 7.469 (diinginkan lebih dari 4.0) Hasil optimasi menunjukkan bahwa kondisi optimum dapat dicapai pada kondisi X1 = 36 jam dan X2 = 0.05%. Kondisi optimum ini diprediksi mampu menghasilkan nilai rendemen 5.29%, dengan nilai desirability 0.719. Extraction of Madura-3 corn starch by optimizing soaking time and NaOH concentration Corn production in Madura showed a tremendous contribution to total production in the Province of East Java. Noticeably, the province was recorded to yield 6 million tons of corn, responsible for approximately 31.3% of domestic production in 2018, as reported by BPS-Statistics. For this reason, there is a need for developing technology that enables to convert the corn into other valuable products, such as starch. Corn starch is essential material since it is applied in copious sectors mainly including food and pharmacy. This present work aimed at optimizing conditions for isolating starch of Madura-3 corn carried out using d-optimal design in Response Surface Methodology (RSM). The variables included soaking time (X1) and concentration of NaOH (X2), arranged as follows: X1 (12 – 36 h) and X2 (0.05 – 0.5%) according to preliminary research. The results demonstrated that the model constructed from data was significant, resulting in an F value of 7.30 and Prob more than F of 0.0075 (P less than 0.05). Furthermore, the statistical analysis showed a lack of fit at 0.45, which means that it was insignificance, which is favorable for this experiment. In addition, adequate precision of the constructed model was achieved at 7.469 (more than 4.0). Based on the statistical evaluation, the optimum condition for starch isolation was found at X1 = 36 h and X2 = 0.05%, which was predicted to yield starch at 5.29% with the desirability value of 0.719.

We developed additive-free fruit leather made from snake fruit (Salacca sp.), one of the exotic fruits of Madura, Indonesia. Mature snake fruit variety native of Bangkalan Regency was peeled, the seed was discarded, and flesh was blanched for 5 minutes, cooled and then crushed in an electric blender to form a smooth slurry. The slurry was then cooked until thick, spread onto a flat surface, and then dried in an oven at 60°C until dry. Fruit leather with a water content of around 10% was kept in aluminium foil or polypropylene plastic bag at 25 and 35°C for 3 weeks. Every week, fruit leather was examined for tensile strength, water activity, colour (L, a b*values), and titratable acidity. Sensory analysis was performed using ten semi-trained panellists to score hardness, chewiness, sweetness, astringency, aroma, shininess, and cohesiveness. Results indicated that tensile strength apparently increased during storage. Polypropylene bag showed lower water activity and value, but higher titratable acidity of fruit leather. Storage time increased water activity, titratable acidity, but reduced all colour parameters. Higher storage temperature led to higher L and b values. On the contrary, sensory analysis results indicated the limited effect of factors studied. The shininess of fruit leather reduced with the progress of storage, and cohesiveness increased in the first week of storage only, followed by constant reduce towards the storage time. Astringency in snake fruit is a limiting factor. However, snake fruit leather showed moderate level (4.6 out of 9 score) of astringency.

Pandemi menyebabkan terhambatnya aliran distribusi pangan dan mengancam pasokan pangan diberbagai wilayah. Akibatnya, kondisi ini mengancam ketersediaan pangan. Oleh karena itu, sumberkarbohidrat alternatif di Indonesia perlu dieksplorasi untuk mendukung tercapainya ketahanan pangan,terutama selama pandemik covid-19 berlangsung. Kegiatan abdimas ini bertujuan untuk memberikanedukasi pangan lokal berbahan karbohidrat alternatif, yaitu koyah di Desa Tanjung Kecamatan Kertosonodan nasi singkong di Desa Sawahan Kecamatan Lengkong. Keduanya berlokasi di Kabupaten Nganjuk,Provinsi Jawa Timur. Metode edukasi adalah penyuluhan secara door-to-door ke 5 keluarga di tiap desasasaran yang terdiri dari (1) penyampaian materi singkat mengenai ketahanan pangan dan pangan lokal,(2) penjelasan metode pembuatan produk, dan (3) evaluasi kegiatan via kuesioner. Kegiatan abdimas inimenjadi salah satu cara untuk meningkatkan pemahaman masyarakat mengenai pentingnya ketahananpangan dan pangan lokal, mengingat 60% responden belum memahami peran strategis pangan lokaldalam mendukung ketahanan pangan nasional. Secara umum, responden memanfaatkan singkong sebagaisumber karbohidrat nonberas, ketela rambat, dan jagung. Melalui kegiatan abdimas ini, peningkatanpemahaman masyarakat mengenai ketahanan pangan dan pentingnya pangan lokal perlu diupayakan, baikmelalui kegiatan penyuluhan maupun pelatihan.