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HIDROLISIS GELATIN TULANG IKAN KAKAP MENGGUNAKAN LARUTAN ASAM (The Hydrolysis Gelatin of Kakap Fish Bone Using Acid Solution) Mulyani, Tri; HP, Sudaryati; Rahmawati, Siska F
REKAPANGAN Vol 5, No 2 (2011): REKAPANGAN
Publisher : UPN VETERAN JAWA TIMUR

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Gelatin is  a natural  product obtained by hydrolysis  of collagen, a soluble protein, which acts  as the  gelling agent. In  general, the  process  of making gelatin begins  with soaking the bone  in  acid  solution,  aimed  at  dissolving  calcium  phosphat  and  other  mineral  salts.  This treatment resulted  in changes to the texture bone , so that bones become relatively non-rigid. Type of acid used is strong acids, namely HCl, H2SO4 and H3PO4, with the level of 3% - 6% concentration. The  purpose of  this  study  was to determine  the  type and  concentration  of acid as a soaking solution. The result showed that the best treatment was HCL concentration of 3%, with  water  content  6.54%,  ash  3.27%, 77.92% protein, gel  strength 72.07  bloom, viscosity 17.86 cp, pH 4.88 and  yield 14.03%. Key words : gelatin, collagen, bone, hydrolysis
KAJIAN PERAN SUSU SKIM DAN BAKTERI ASAM LAKTAT PADA MINUMAN SINBIOTIK UMBI BENGKUANG (pachyrrhizus erosus) Mulyani, Tri; HP, Sudaryati; Susanto, Agus
REKAPANGAN Vol 5, No 1 (2011): REKAPANGAN
Publisher : UPN VETERAN JAWA TIMUR

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Sinbiotik  (eubotic)  is  a  combination  of  prebiotics  and  probiotics.  The  advantage  of  this combination is to enhance  the growth  of  probiotic  bacteria  by prebiotic  substrates. In general, the  raw  material  of  sinbiotik  beverage  is  milk.  At  this  time,  as  product  innovations  made  brew filtrate  sinbiotik  of  yam  tubers  (Pachyrrizus  erosus).  The  advantages  of  this  product  is  the availability of two components as well as the  inulin derived from the  tubers of  yam which acts as a prebiotic and Lactobacillus Casei that act as probiotics. The purpose of this study was to determine the effect of the addition of skim milk and the concentration of starter (Lactobacillus casei)  that  most  optimally  in  the  process  of  making  drinks  sinbiotik  yam  tubers.  The  results showed  that  the  best  treatment  there  is  the  additional  treatment  of  skim  milk  20%  and  the concentration of starter (Lactobacillus Casei) 2%. The results showed total lactic acid bacteria 11.2933 log CFU / ml, 0.5119% total acid, pH 3.7, total dissolved solids 36.0680 (oBrix), inulin content of 3.2503% and 0.3667% soluble protein.Keywords: sinbiotik, skim milk, probiotic bacteria, prebiotic substrates
PEMBUATAN BUBUK CABE MERAH MENGGUNAKAN VARIASI JENIS CABE DAN METODE PENGERINGAN HP, Sudaryati; MS, Latifah; Hermawan, Donny Eko
REKAPANGAN Vol 5, No 2 (2011): REKAPANGAN
Publisher : UPN VETERAN JAWA TIMUR

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Chili powder is a product in the form of powder, practically in the preparation and have a long shelf life. This is the nature of the powder product having a very small particle size, has a  low  water  content.  Chili  powder  manufacturing  process were sorting,  washing  and  cleaning the stem, drying, milling and sieving. This study aims to find the best results from different  type of chili with different dryers include: Oven,  Freeze Dryer and  Cabinet dryer  on the quality of  red  chili  powder. Tthe  results  obtained  from  the  data  the  best  treatment  of  red  chili  powder using a freeze dryer  as follows: The water content of 15.8679%, β-carotene  318.728  IU, vitamin C 563.017 (mg/100g), color (L * 42.40; 20.25 b * 18.60) and organoleptic tests of color (83.5).Keywords : chili powder, cabinet drier, oven, freeze drier
INAKTIVASI MIKROBA Staphylococcus aureus DALAM SUSU MENGGUNAKAN MEDAN LISTRIK BERDENYUT TEGANGAN TINGGI Nurismanto, Rudi; HP, Sudaryati; Rahmita, Ruhi Dian
REKAPANGAN Vol 5, No 2 (2011): REKAPANGAN
Publisher : UPN VETERAN JAWA TIMUR

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Pulsed  electric  field  processing  represents  a  promising  non-thermal  technology which involves the application of pulses of high voltage (20-80 kV/cm) for less than one second  to  fluid  foods  placed  between  two  electrodes.  During  the  application  of  certain PEF conditions microbial inactivation occurs by causing a pore formation and destruction of  the  cell  membranes The  purposes  of  the  present  study  were  (i)  to  inactivated  of Staphylococcus  aureudecreas  using  pulsed  electric  field  and  (ii)  physicochemical properties of raw milk. Intensity field strength that used are  30 and 60 kV/cm, with pulses number  10,  20, and 30. The  results  showed  that  higher  decrease  of  population  of Staphylococcus  aureus  with intensity 60  kV/cm and pulses  number  30 (0,6  log cycle) and PEF methods give unsignificant effect on pH and total acid.Key words : pulsed electric field, population,  Staphylococcus aureus 
KAJIAN PATI JAGUNG DAN BUNGA ROSELA PADA KUALITAS PERMEN LUNAK (soft candy) HP, Sudaryati; Latifah, Ir; Sari, Yapri Lukita
REKAPANGAN Vol 4, No 1 (2010): REKAPANGAN
Publisher : UPN VETERAN JAWA TIMUR

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Soft  candy is  mixtures  of  sucrose,  glucose  syrup,  water,  gel-forming  materials  and additives  such  as flavor,  dye  and  has  a  soft texture. Roselle  petals  become  alternative for the manufacture  of  soft  candy  roselle that  have  vitamin  C  and  anthocyanins  that  serves  as  a natural  red  color. This  soft  chewy  candy  is  produced  from  the  gel-forming  material.  Corn starch  as  a  gel-forming  material,  because  the  nature  of  corn  starch  in  its  contribution  to  the texture. Cooking is an important processing stage in the manufacture of candy that will affect the  texture  and  color  of  the  candies  are  produced.  This  study  aims  to  determine  the  effect  of adding corn starch and long ripening on the quality of roselle soft candy and to obtain the best combination  treatment  between  the  addition  of  corn  starch  and  long  cooking  in  the manufacture. This research method using a completely randomized design with 2 factors and repeated 3 times. The first factor was the concentration of corn starch (5%, 10%, 25%) and the second factor  is  the  length  of  cooking  (1.5  minutes,  3  minutes,  4.5  minutes).  The Best  research  results    soft  candy  corn  starch  concentration  of  10%  and  long  cooking  3 minutes to produce water content 5.712%, Vitamin C 27.78 mg/100gr, 56.060% total dissolved solids, texture 0.186 mm / gr.dtk and anthocyanin 0.0713%.Keywords: Software Candy, Rosela
PEMBUATAN VELVA SAYURAN ( KAJIAN PROPORSI WORTEL, TOMAT, KECAMBAH DAN PENAMBAHAN NA-CMC TERHADAP KUALITAS VELVA SAYURAN ) Susilowati, Titi; HP, Sudaryati; Candra, Demy Ayu
REKAPANGAN Vol 4, No 2 (2010): REKAPANGAN
Publisher : UPN VETERAN JAWA TIMUR

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Velva  is a  kind  of  freezing  food,  like  ice  cream  that made  from  various  fruit  or vegetables. The materials is mixed, homogenized, cooling in the ice cream maker and than was freezed. Carrot,  tomato  and  mungbean  sprout are once  of  tropical  vegetables  can  be  used  as materials for producing velva. The research is aimed to know effect of proportion carrot, tomato,mungbean sprout and concentration of Na – CMC  to quality of velva sayuran. The Research used Complete Design Randomized with factorial pattern. The First factor is  kind  of  vegetables  (carrot,  tomato,  and  mungbean  sprout);  the    second  factor  is concentration  of  Na – CMC : 0,5%;  0,6%;  0,7  %;  0,8%;).  Ducant  Multiple  Range  Test was used to know defference of every treatment. The  best  proportion  on  processing  velva  vegetables  is  80  :  80  :  40(carrot,  tomato  and mungbean sprout) and Na- CMC 0,8 %. This treatment is giving the highest overrun is 20,495 %;  smooth  texture  and the  highest hedonic  value  (taste  and  aroma).  The  result  of  chemical  analysis showed  that Aw 68,95 %, Caroten total 59,89 %, Vitamin C 68,39%, Vitamin E 24,33 % and Total Soluble Solid 32,47 %.Key Word : Velva Vegetables, Carrot, Tomato, Mungbean Sprout And Na - CMC
KAJIAN SUBTITUSI AMPAS TAHU DAN PENGGUNAAN NATRIUM BIKARBONAT PADA PEMBUATAN TORTILLA HP, Sudaryati; Mulyani, Tri; Setiawan, Eka Bagus
REKAPANGAN Vol 6, No 1 (2012): REKAPANGAN
Publisher : UPN VETERAN JAWA TIMUR

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Tortilla is  a similar product  in  the  form of  chips  or corn chips made from a  flattened circular shape with sizes varying thickness. In order to diversify, Tortilla refined products and to enhance the nutritional  value. it  is  necessary  to substitute other  materials,  such  as tofu  waste  flour . The  tofu waste flour know still have a very good nutrient composition, especially protein and fiber. But with the substitution  of tofu  waste  flour know can reduce development and crispy Tortilla generated, so  the developer  needs  to  add  material  of  which  is  sodium  bicarbonate  (NaHCO3). This  study  aims  to determine  the  effect  of  substitution  and  addition  of  tofu  waste  flour  and  sodium  bicarbonate (NaHCO3) on  the  quality  of  physical,  chemical  and  organoleptic  Tortilla.  This  research  used Completely  Randomized Design (CRD) which are  arranged  in factorial which consist of two factors and  repeated  two  times. The  substitution  factor  is  the  tofu  waste  flour  10%, 20%, 30% and  the addition  of NaHCO3 factor II is 0.00%, 0.25%, 0.50%, 0.75%. The  best  results  were obtained  on substitution treatment with 10% wheat dregs out with the  addition  of 0.25% NaHCO3 to produce tortilla with water content of 9.016%, 74.884% starch content, crude fiber content of 2.046%, 7.924% protein  content,  yield  62.718%, 1.069  crispness  kg/cm2,  the  volume  of  20.346% and  the development of organoleptic value with a color ranking number 205, 215 flavor, aroma and crispness 204.5 147.
KAJIAN PERAN ANGKAK PADA KUALITAS TEMPE KEDELAI-LAMTORO GUNG (Leucaena leucocephala) Rosida, Dedin F; HP, Sudaryati; Constantia, Fenny
REKAPANGAN Vol 6, No 1 (2012): REKAPANGAN
Publisher : UPN VETERAN JAWA TIMUR

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In  general,  people  use  soy  as  an  ingredient  of  making tempeh,  tempeh  increased  demand resulted in a growing number of imported soybeans.The efforted can be done to overcome this is by replacing or mixing of raw materials (soybeans) with other materials. Substitute one ingredient is soy beans  lamtoro  stage.  Diversification  of  products  tempeh  can  be  done  by  adding  lamtoro  gung  and red  yeast  rice  in  soy  tempeh.  This  study  aims  to  determine  the  effect  of  the  proportion  of  soybean seeds:  lamtoro  gung  and  the  addition  of  red  yeast  rice  to  quality  tempe.  Research  using  Complete Randomized  Design  (CRD)  factorial  pattern  with  two  factors  and  two  replications,  the  proportion  of soybean Factor I: lamtoro gung 70%: 30%, 50%: 50%, 30%: 70%. Factor II, the addition of red yeast rice  1%,  2%,  3%.  The  results  showed  that  the  best  treatment  is  the  treatment  the  proportion  of soybean: lamtoro gung (70:30) and the addition of 1% red yeast rice is produced tempeh with criteria 1% addition of red yeast rice that has a water content of 62.42%, ash content 3.30%, levels 14.99% protein, fat  content  of  3.99%,  3178.41  ppm  phenol  content,  antioxidant  activity  of  59.47%,  texture (hardness) 0.241 mm / sec and the gr 72 favorite color, flavor 75, flavor 73, compactness 71 .Key words: soybean, lamtoro gung red yeast rice
PEMBUATAN ASAM GLUKONAT DARI GLUKOSA DENGAN PROSES FERMENTASI MENGGUNAKAN Aspergillus niger Latifah, Ir; HP, Sudaryati; E, Hariyono
REKAPANGAN Vol 4, No 2 (2010): REKAPANGAN
Publisher : UPN VETERAN JAWA TIMUR

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Gluconic  acid  is  a  product  of  the  dehydrogenation  of  glucose,  and  used  widely  industry. Gluconic acid which is crystallized in the form-δ-lactone glukono can be used to substitute for yeast in bread making and other food industries. The more 50,000 tons of gluconic acid were produced by fermentation using Aspergilus niger of material containing glucose. The  purpose  of  this  study  to  determine  the  best  treatment  volume  and  the  fermentation  time starter in the production of gluconic acid from glucose by fermentation with Aspergillus niger. This research used Completely Randomized Design (CRD) with factorial pattern consisting of 2 factors with 2 repetitions. The first factor  is the length of fermentation (12 and 18, and 24 hours)  and  the  second  factor    is  the  volume  of  starter  (12,  16;  and  20  mL)  .  The results showed that the best treatment there is the treatment of fermentation time 24 hours and the volume of 16 ml starter, which produces gluconic acid with a concentration = 7.405%, density = 1.1559 g / ml, pH = 3.4, biomass = 8.5580 gr .
PEMBUATAN YOGHURT BUBUK SUSU KAMBING ETTAWA (Making Yoghurt Powdered Goat Milk Ettawa) HP, Sudaryati; Djajati, Sri i; Fachrizal, Novan Tri
REKAPANGAN Vol 10, No 2 (2016): REKAPANGAN
Publisher : UPN VETERAN JAWA TIMUR

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ABSTRAKYoghurt susu kambing memiliki kandungan gizi lebih unggul dari Yoghurtsusu sapi, salah satu diantaranya adalah kandungan protein susu kambing relatif lebihtinggi, yaitu 4,3% dibanding susu sapi 3%. Akan tetapi karena pada kenyataannyaterdapat beberapa orang yang kurang menyukai yoghurt susu kambing dikarenakanbau amis, sehingga perlu dibuat menjadi yoghurt bubuk agar bau amis dari susuberkurang. Selain itu yoghurt bubuk memiliki daya simpan lebih lama dan dapatdisimpan dalam suhu ruang. Akan tetapi membuat yoghurt bubuk dibutuhkan bahanpengisi dan penstabil yaitu maltodekstrin dan Na-CMC untuk mengikat dan melindungisenyawa-senyawa yang mudah rusak oleh panas pada saat pengeringan. Tujuan daripenelitian ini adalah untuk mengetahui pengaruh penambahan maltodekstrin dan Na-CMC terhadap kuwalitas yoghurt bubuk susu kambing ettawa serta menentukanperlakuan kombinasi terbaik dari perlakuan penambahan maltodekstrin dan Na-CMCterhadap mutu yoghurt bubuk susu kambing yang disukai konsumen. penelitian inimenggunakan Rancangan Acak Lengkap (RAL) pola faktorial dengan dua faktor yaitupenambahan Maltodekstrin (10%, 15% dan 20%) dan penambahan Na-CMC (1%,1.5% dan 2%). Hasil penelitian menunjukkan bahwa perlakuan terbaik adalah padapenambahan Maltodekstrin 20% dan penambahan Na-CMC 1.5% yang menghasilkanproduk yoghurt bubuk susu kambing ettawa dengan total bakteri asam laktat 9.0988log cfu, kadar air 1.9%, rendemen 41.7%, daya larut 87.42%, kadar abu 2.19%, protein14.26%,dan lemak 12.83%.Kata kunci : Yoghurt bubuk, susu kambing, maltodekstrin dan Na-CMCABSTRACTGoat milk yogurt has nutritional content is superior to the cows milk Yoghurt,one of which is a goats milk protein content is relatively higher, i.e. 4.3% compared to3% of cows milk. However, because in fact there are some people who are less fondof goats milk yogurt because the fishy smell, so it needs to be made into yoghurtpowder so that the fishy smell of the milk decreases. In addition the yoghurt powderhas a save life longer and can be stored inroom temperature. But making yoghurtpowder fillers and stabilizers necessary i.e. maltodekstrin and Na-CMC for binding andprotecting the compounds that are easily damaged by heat when drying. The purposeof this research is to know the influence of the addition of maltodekstrin and Na-CMCquality towards the of powdered goats milk yoghurt ettawa and determine the bestcombination of treatment of adding maltodekstrin and Na-CMC against quality yoghurtpowdered goats milk favored consumers. This study used a Randomized CompleteDesign (RAL) factorial pattern with two factors, namely the addition of Maltodekstrin(10%, 15% and 20%) and the addition of Na-CMC (1%, 1.5% and 2%). The resultsshowed that the best treatment was the addition of Maltodekstrin 20% and the additionof Na-CMC 1.5% that produce powdered goats milk yogurt ettawa with total lactic acidbacteria 9.0988 log cfu, 1.9% water content, yield which 41.7%, solublelity 87.42%,2.19% ash, protein, and fat 14.26% and 12.83%.Keywords: yoghurt, goats milk, Maltodekstrin, Na-CMC