Tempe is a traditional Indonesian food, a processed product made from soybeans which is formed from the Rhizopus Sp type mold, especially from the R. oligosporus species through a fermentation process. The tempeh production process needs to be improved in terms of time efficiency, cost, workmanship effectiveness and nutrition. This improvement can be done by boiling the soybeans in an autoclave. Soybeans contain antioxidant compounds in the form of isoflavones, tocopherol and ascorbate. Antioxidants are really needed by the body as an antidote to free radicals because they work by donating one electron to compounds that are oxidants so that the negative impact of oxidants can be inhibited. The aim of this research was to determine the effect of boiling time for soybeans (Glycine max L.) in an autoclave on phytochemical compounds (total polyphenols, total flavonoids and antioxidants) as well as the sensory properties (color and compactness) of soybean tempeh. This research method uses a non-factorial experimental design prepared with RAL (Completely Randomized Design) which consists of 1 factor, namely the length of boiling soybeans in an autoclave with 4 treatment levels P1 (5 minutes), P2 (10 minutes), P3 (20 minutes), P4 (30 minutes) and each treatment was repeated 3 times. The results showed that the highest total phenolic content and total flavonoid content were obtained from soybean tempeh with soybean tempeh treatment in an autoclave for 5 minutes, namely 5.33 mgGAE/g and 0.121 mgQE/g, while the highest antioxidant activity was obtained from soybean tempeh with boiling treatment. soya bean. in an autoclave for 30 minutes, namely 11.32%

Tempeh is a traditional Indonesian food made from fermented soybeans with the fungus Rhizopus Oligosporus and has a distinctive aroma. Tempeh contains many nutrients that are beneficial to health because the nutriens are more easily digested, absorbed, and utilized by the body. An important principle in preparing good tempeh is soaking and boiling it. Soaking is used to achive a suitable pH (acidity) for mold growth, namely 3.5-5.2. and boiling is used to soften soybean seeds and inactivate microbes that grow during soaking. The purpose of this study was to see the effect, interaction between soaking time and processing method on the chemical, microbiological and organoleptic properties of tempeh. This study used a Completely Randomized Design (CRD) factorial two factors. Factor I soaking time (12 hours, 18 hours, and 24 hours). Factor II is the tempeh processing method (one time boiling method and the two-time boiling method). Statistical Analysis using Analysis of Variance (ANOVA) with IBM SPSS version 20 and later Duncan Multiple Range Test (DMRT). Organoleptic test using Ranking Test. Soaking duration and processing method had a significant effect on the observed parameters of water content, protein, antioxidants, color and had no significant effect on the parameters of Total Plate Count (TPC) of mold, as well as texture and odor organoleptic tests. Best on the Indonesian National Standart for 12 hour soaking and one time processing/boiling method, the resulting tempeh contains 57,10% water content, 47,25% protein, 0,39% antioxidants, Total Plate Count (TPC) mold 258 CFU/g x 10-1 and organoleptic texture (compact when sliced), color (white evenly all over the surface), and smell/aroma (typical tempeh odor)

PENGARUH PERLAKUAN SPRAY DRYING TERHADAP EKSTRAK ANTOSIANIN UBI JALAR UNGU (Ipomoea batatas Var.Ayamurasaki)
PENGARUH PERLAKUAN SPRAY DRYING TERHADAP EKSTRAK ANTOSIANIN UBI JALAR UNGU (Ipomoea batatas Var.Ayamurasaki)
 

Optimalisasi persediaan bahan baku dimaksudkan guna memenuhi kebutuhan bahan baku untuk proses produksi pada waktu yang akan datang, kegiatan pengendalian persediaan bahan baku mengatur tentang pelaksanaan pengadaan yang diperlukan sesuai dengan jumlah yang dibutuhkan serta dengan biaya yang minimal, yang meliputi masalah pembelian bahan baku, menyimpan dan memelihara bahan, mengatur pengeluaran bahan saat bahan dibutuhkan dan juga mempertahankan persediaan dalam jumlah yang optimal. Pengendalian persediaan bahan baku ini dapat dilakukan analisis dengan metode EOQ sebagai salah satu pilihan perbandingan antara kebijakan perusahaan yang telah dilaksanakan. Penelitian ini dilakukan di Agronas Gizi Food. Teknik analisis yang digunakan adalah dengan membandingkan antara hasil perhitungan kebijakan perusahaan dengan metode EOQ. Perhitungan kebijakan perusahaan meliputi biaya per pesanan (S) dengan hasil Rp. 183.800/pesanan, biaya penyimpanan (H) dengan hasil Rp.859/Kg, biaya total persediaan (TIC) yang harus dikeluarkan Rp.5.689.560, frekuensi pembelian sebanyak 30 kali, dengan pembeliaan rata-rata 1500 kg/tahun sedangkan perhitungan metode EOQ meliputi pembelian yang ekonomis (Q*) dengan hasil 4198 kg, frekuensi pembelian (F) dengan hasil 10 kali dalam satu tahun, total biaya persediaan (TIC) dengan hasil Rp.3.605.795, safety stock Rp.3.605.795, dan ROP 234 Kg. Berdasarkan teknik analisis yang digunakan persediaan bahan baku keripik kentang di Agronas Gizi Food dapat dikatakan belum optimal karena dari perhitungan diperoleh hasil kebijakan perusahaan lebih besar dari metode EOQ.
Kata kunci : Bahan Baku, kebijakan perusahaan, metode EOQ

PENGARUH METODE PENGERINGAN TERHADAP STABILITAS ANTIOKSIDAN UBI JALAR UNGU (Ipomoea batatas Var.Ayamurasaki) TERENKAPSULASI

Jelly candy is a soft-textured processed food, clear appearance, transparent, elastic with certain elasticity with the addition of a thickening agent such as pectin and others. Pectin is a good gelling agent and stabilizer in jelly candies with low pH conditions. Dragon fruit skin is  one  of  the  fruit  peels  which  has  a  high  pectin  content  of  10.79%.  Dragon  fruit  peel (Hylocereus polyrhizus) extraction as an alternative in obtaining commercial pectin. The addition of sugar serves as a preservative, inhibits the growth of microorganisms, decreases the activity of food water. The purpose of this study was to determine the addition of dragon fruit peel pectin and sugar to the quality of jelly candy. The study used factorial designs arranged in a completely randomized design (CRD) consisting of 2 factors: factor I pectin concentration consisting of 3 levels (1.0%, 1.5%, 2.0%) and factor II sugar concentration consisting of 3 levels namely (40%, 50%, 60%). The method was analyzed by Homogeneity test in IBM SPSS version 24 and further tests (Tukey test). The selected treatment on the addition of 2.0% dragon fruit peel pectin and 60% sugar influences the quality of jelly candy which has a moisture content of 42.812%, reducing sugar 4.900%, vitamin C 0.220%, color (L = 55,500%, a * = 15,333 %, b * = 1.800%), texture 0.025% N / mm2. Organoleptic results for panelists' preferences were jelly candy color 4,433%, jelly candy texture 4.555% and jelly candy taste 4.522%. Reducing sugar and jelly candy texture meet SNI 2008 standards.

Yogurt is a type of beverage classified as a refreshment drink which is produced through a fermentation process that uses Lactic Acid Bacteria. Most legumes have been widely used as raw materials in the making of a milk known as vegetable milk. Legume milk contains amino acids that are almost equivalent to the amino acid  content of animal milk so it can be used as a base substitute material for fermented animal milk. Processed green bean milk yogurt is a form of food diversification. Skim milk is a low- fat milk added in the production of green bean milk yogurt, and yogurt starter is an important factor in the process of yogurt making. The purpose of the study is to determine the effects of the addition of yogurt starter and skim milk on the quality of green bean milk. The research design is 2-Factor Factorial Design arranged with Completely Randomized Design (CRD). Factor I consists of 2 levels, namely 12 grams of skim milk and 15 grams of skim milk; factor II consists of 3 levels, namely 15 ml, 20 ml, and 25 ml of starters. Observation variables consist of pH, total acid, viscosity, protein content, lactic acid bacteria, organoleptic aroma test, organoleptic texture test, and organoleptic taste test. From the results of this study, the highest results obtained in the treatment consist of: a) 12 grams of skim milk and 25 ml of 8.13%,Total Acid, Organoleptic Aroma Test 4.57, Organoleptic Texture Test 4.73; b) 15 grams of skim milk and 25 ml of starter of pH 4.17, Viscosity 8.67 cP, protein content 0.94%, Lactic Acid Bacteria 2933.33 x 103 CFU / mL, Organoleptic Aroma Test 4.57, Organoleptic Texture Test 4.61, Organoleptic Taste Test 5.02.

The optimalization of raw materials supply is intended to meet the needs of raw materials for the process of the production process the future; the activity of controlling raw materials manages the implementation of necessary supply in accordance with the required amount and minimal cost, which includes the problem of purchasing raw materials, storing and maintaining materials, controlling the output of the material when materials are needed and maintaining the optimal supply amount. The raw material supply control can be analyzed using the EOQ method as one of the choices in comparing the implemented company policies. This research was conducted at Agronas Gizi Food. The analysis technique used is by comparing the results of company policy calculation and the EOQ method. The calculation of company policy includes the cost of ordering  (S) with the results of Rp. 183,800 / order, supply costs (H) with a result of Rp.859 / Kg, total inventory costs (TIC) that must be spent Rp.5,689,560, the frequency of purchase 30 times, with an average purchase of 1500 kg / year while the calculation method EOQ includes economical purchases (Q*) with results of 4198 kg, frequency of purchases (F) with the result 10 times a year, total inventory costs (TIC) with the result of Rp.3,605,795, safety stock Rp.3,605,795, and ROP 234 Kg. Based on the analysis technique on raw material for potato chips in Agronas Gizi Food, it can be concluded that it is not optimal because the calculation the results of company policies are greater than the EOQ method.

Penyimpanan pada suhu dingin merupakan salah satu cara mempertahankan kesegaran ubi jalar ungu Ayamurasaki. Pendinginan akan memperlambat atau mencegah terjadinya kerusakan yang tidak diinginkan tanpa menimbulkan gangguan pada proses pematangan dan memperlambat perubahan yang tidak diinginkan selama penyimpanan suhu dingin. Penyimpanan suhu dingin khususnya pada suhu 40C dapat memperpanjang masa hidup jaringan-jaringan dalam bahan pangan tersebut karena aktivitas respirasi menurun dan menghambat aktivitas mikroorganisme. Tujuan penelitian ini untuk mengetahui Aktivitas Antioksidan Ubi Jalar Ungu (Ipomoea Batatas Var Ayamurasaki) Selama Penyimpanan Suhu 40C. Hipotesis yang dapat diambil dari penelitian ini adalah: Diduga lamapenyimpanan suhu dingin mengalami peningkatan terhadap kandungan senyawaantioksidan khususnya senyawa antosianin yang terdapat dalam ubi jalar ungu(Ayamurasaki). Tempat dan waktu penelitian. Penelitian ini dilakukan di Laboratorium Fakultas Pertanian Universitas Katolik Widya Karya Malang pada bulan Maret 2014. Rancangan penelitian yang digunakan dalam percobaan ini adalah Rancangan Acak Lengkap (RAL). Perlakuan lama penyimpanan pada suhu 40C terdiri dari 4 (empat) level. Masing-masing perlakuan diulang sebanyak 3 (tiga) kali. Variabel penelitian adalah aktivitas antioksidan, kadar antosianin dan kadar gula. Untuk mengetahui pengaruh perlakuan dilakukan uji F dengan menggunakan F Tabel 5% dan 1% untuk mengetahui perbedaan masing-masing perlakuan digunakan uji Beda Nyata Terkecil (BNT). Hasil analisis ragam menunjukan bahwa penyimpanan suhu 40C berpengaruh sangat nyata pada taraf 1% untuk aktivitas antioksidan, kadar antosianin dan kadar gula. Hasil yang tertinggi pada penyimpanan suhu 40C dari setiap perlakuan adalah pada hari ke 15 yang menghasilkan aktivitas antioksidan 272,061%, kadar antosianin 761,059gr/kg dan kadar gula 55,333%.Kata Kunci : Penyimpanan, Antioksidan, Antosianin, Gula

Potensi sumber daya alam yang dimiliki Indonesia menjadikan Negara yang subur dan beranekaragam flora dan fauna. Salah satu komoditas tanaman pangan yang banyak diproduksi di Indonesia adalah ubi jalar. Ubi jalar (Ipomoea batatas L. ) merupakan sumber pangan penting dan potensial untuk dijadikan pakan dan bahan baku industri.Ekstraksi adalah suatu proses pemisahan berdasarkan perbedaan kelarutan bahan. Proses ekstraksi mempunyai bagian utama yaitu pelarut dan bahan utama. Ekstraksi antosianin dari dalam jaringan ubi jalar ungu dilakukan secara maserasi dengan pelarut etanol 96%. Hasil ekstraksi selanjutnya dienkapsulasi dengan menggunakan maltodekstrin. Setelah itu dikeringkan dalam alat pengering vakum. Penelitian ini bertujuan untuk mengetahui pengaruh suhu vacuum drying terhadap ekstraksi antosianin ubi jalar ungu (ipomea batatas var ayamurasaki) yang dienkapsulasi. Rancangan percobaan yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) yang terdiri dari 1 (satu) faktor yaitu faktor suhu yang terdiri dari 3 (tiga) level. Hasil rerata paling tinggi total antosianin didapat dari suhu 400C sebesar 166 mg/100g, aktivitas antioksidan didapat dari suhu 400C sebesar 24,00%, derajat kecerahan (L*) didapat dari suhu 400C sebesar 62,43, derajat kemerahan (a*) didapat dari suhu 400C sebesar 33,63, derajat kekuningan (b*) didapat dari suhu 600C sebesar 5,20, dan kadar air didapat dari suhu 400C sebesar 3,49.Kata kunci: Antosianin, Ubi Jalar, Suhu, Enkapsulasi