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Jurnal Teknologi Pangan dan Hasil Pertanian
Published by Universitas Semarang
ISSN : 16939115     EISSN : 2580846X     DOI : 10.26623
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Computer Science & IT
Arjuna Subject : -
Articles 6 Documents
 1 
Search results for , issue "Vol 16, No 1 (2021): Februari" : 6 Documents clear
Karakteristik Fisikokimia Dan Organoleptik Fruit Leather Semangka Kuning (Citrullus Lanatus) Dengan Variasi Konsentrasi CMC Ika Fitriana; Soraya Kusuma Putri; Anisa Rachma Sari
Jurnal Teknologi Pangan dan Hasil Pertanian Vol 16, No 1 (2021): Februari
Publisher : Faculty of Agricultural Technology, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/jtphp.v16i1.3498

Abstract

Semangka (Citrullus lanatus) merupakan buah yang disukai oleh sebagian masyarakat Indonesia karena rasanya yang manis dan segar serta banyak mengandung air. Fruit  leather  dapat dijadikan alternatif olahan pangan yang memiliki daya simpan tinggi (hingga 12 bulan). Produk ini dibuat dari bahan dasar buah, dengan bentuk hancuran buah (puree) yang sudah dikeringkan dalam oven. Pembuatan fruit  leather  dari semangka perlu dilakukan penambahan zat penstabil karena berguna untuk meningkatkan tingkat viskositas, mencegah terjadinya sineresis serta untuk memberi rasa manis. Carboxyl methyl cellulose (CMC) merupakan zat penstabil yang biasa digunakan dalam produk makanan atau minuman yang berasal dari buah-buahan. Metode penelitian yang digunakan adalah rancangan acak kelompok (RAK) satu faktorial yaitu kadar CMC dengan 5 level (0,5%; 0,75%; 1%; 1,25%; 1,5%). Masing-masing perlakuan dilakukan pengulangan sebanyak 4 kali. Hasil dari penelitian menunjukkan perbedaan konsentrasi CMC akan menghasilkan perbedaan pada beberapa parameter seperti:  Viskositas fruit  leather  yaitu berkisar antara 11461,33-3984,67 Cp, kadar air  yaitu 16,45-21, 23%bb dan tensile   strength  yaitu  1,26-2,76.  Hasil skoring dari analisa sensori menunjukkan warna fruit  leather  semangka adalah kuning, tekstur pada tiga sampel terasa lunak, satu sampel terasa agak lunak serta satu sampel lainnya terasa keras. Penilaian skoring terhadap rasa fruit leather semangka menunjukkan tiga sampel terasa manis dan dua sampel terasa kurang manis. Secara keseluruhan pada hasil tingkat kesukaan menunjukkan panelis suka terhadap 3 sampel yang diujikan, dan merasa kurang suka terhadap 2 sampel yang diujikan. Kesimpulan dari penelitian ini adalah penambahan konsentrasi CMC  dalam pembuatan fruit  leather  dari semangka kuning akan meningkatkan viskositas, kadar air, dan tensile   strength  dari produk, serta pada uji sensori menunjukkan sampel dengan konsentrasi CMC 0,75% memiliki tingkat tekstur, rasa dan kesukaan yang tinggi.
Pengaruh Perbedaan Konsentrasi Ekstrak Karapas Udang Terhadap Sifat Fisikokimia Kaldu Bubuk yang Dihasilkan Karomah, Siti; Haryati, Sri; Sudjatinah, Maria
Jurnal Teknologi Pangan dan Hasil Pertanian Vol 16, No 1 (2021): Februari
Publisher : Faculty of Agricultural Technology, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/jtphp.v16i1.3511

Abstract

Karapas udang adalah salah satu limbah hasil perikanan yang dapat menjadi potensi alternatif penyedap rasa alami karena banyak mengandung asam glutamat yang menimbulkan rasa umami pada masakan dengan membuatnya menjadi kaldu bubuk. Kaldu bubuk merupakan salah satu produk yang telah dikenal sebagai bahan tambahan masakan yang didapatkan dari perebusan daging atau lebih dikenal sebagai bumbu penyedap. Tujuan dari penelitian ini adalah untuk mengetahui pengaruh dan perlakuan terbaik perbedaan konsentrasi ekstrak karapas udang terhadap kualitas kaldu bubuk yang dihasilkan. Penelitian ini dilaksanakan di Laboratorium Rekayasa Pangan, Laboratorium Kimia Universitas Semarang dan Laboratorium Chemix Pratama Yogyakarta. Rancangan percobaan yang digunakan adalah Rancangan Acak Lengkap dengan 5 perlakuan 4 ulangan, yaitu pemberian konsentrasi ekstrak karapas udang, yaitu 3%; 3,5%; 4%; 4,5%; dan 5%. Parameter pengujian adalah kadar air, kadar lemak, kadar protein, kadar glutamat, dan uji hedonik meliputi atribut rasa dan aroma. Data analisis menggunakan analisis ragam (ANOVA). Untuk mengetahui perbedaan antara perlakuan, data diuji dengan Duncan Multiple Range Test (DMRT) dengan taraf 5%. Hasil penelitian menunjukkan bahwa perbedaan ekstrak karapas udang memberikan pengaruh nyata (p<0,05) terhadap kadar air, kadar lemak, kadar protein, kadar glutamat, dan skor hedonik. Penelitian ini merekomendasikan perlakuan P3 sebagai alternatif perlakuan terbaik dengan pertimbangan kadar air (4,17%), kadar lemak (1,29%), protein (15,05%), glutamat (10,76%), serta menjadi paling disukai panelis dengan skor atribut rasa (5,50), dan aroma (4,77).
PENGARUH KONSENTRASI MALTODEKSTRIN TERHADAP KARAKTERISKTIK FISIKOKIMIA SERBUK EKSTRAK BUAH PARIJOTO (Medinilla speciosa Blume) Maslikhatul Ummah; Bambang Kunarto; Ery Pratiwi
Jurnal Teknologi Pangan dan Hasil Pertanian Vol 16, No 1 (2021): Februari
Publisher : Faculty of Agricultural Technology, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/jtphp.v16i1.4402

Abstract

The purpose of this research is to know the effect of increasing the concentration of maltodextrin on the physicochemical characteristics of parijoto fruit (Medinilla speciosa Blume) extract powder by analyzing yield, solubility, color intensity, air content, and anthocyanin content. The experimental design used in this study was a Completely Randomized Design (CRD) with one factor and 3 replications. The studied factors were the concentration of maltodextrin in making powder from parijoto fruit extract which consisted of 6 treatments, they are: 5%, 10%, 15%, 20%, 25%, and 30%. If there is a significant difference between treatments, further testing is carried out with the Duncan test at 5% level. The results showed that the addition of maltodextrin had a significant effect on all parameters of parijoto fruit extract powder. The best anthocyanin powder from parijoto fruit extract was the concentration of maltodextrin 10%, anthocyanin content 2.68 ppm, yield 12.48%, solubility 79.96%, water content 4.22%, lightening level (L*) 55.05, redness level (a*) 18.10, and yellowness level (b*) 16.64.
Potensi Ekstrak Daun Insulin (Tithonia diversifolia (Hemsl.) A. Gray) Terhadap Profil Kadar Glukosa Darah, Kadar Malondialdehid dan Histologi Islet Langerhans Pankreas Tikus Putih (Rattus norvegicus L.) Hiperglikemik Anisa Rachma Sari; Tyas Rini Saraswati; Enny Yusuf Wachidah Yuniwarti
Jurnal Teknologi Pangan dan Hasil Pertanian Vol 16, No 1 (2021): Februari
Publisher : Faculty of Agricultural Technology, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/jtphp.v16i1.4403

Abstract

Diabetes mellitus is a degenerative disease with high risk. This disease can be caused by an increase in free radicals in the body. Free radicals in the body can be detected by testing malondialdehyde levels. The increase in free radicals can cause damage to the pancreatic islet Langerhans so that insulin ability is reduced. The reduced ability of insulin causes hyperglycemic conditions, which are the first symptoms of DM. The use of medicinal plants is widely used by the community as an alternative treatment for this disease. The insulin leaf plant (Tithonia diversifolia) is empirically used by the public as an antihyperglycemic drug. The aim of this study was to examine the ability of insulin and glibenclamide leaf extracts to reduce the level of free radicals in hyperglycemic conditions and to describe their ability to repair Langerhans islets damaged by toxic substances so that the blood glucose levels of hyperglycemic rats could return to normal. Hyperglycemic rats were obtained by injecting alloxan monohydrate at a dose of 150 mg/ BW of rats into male Rattus norvegicus intraperitoneally. This study used a completely randomized design (CRD), with four treatments with five replications each, namely group P1 as control mice, group P2 as hyperglycemic rats given 10 mg/ BW dose of glibenclamide/day, group P3 as hyperglycemic rats. who were given insulin leaf extract at a dose of 150 mg/ BW rats /day and group P4 as hyperglycemic rats who were given insulin leaf extract at a dose of 300 mg/ BW rats /day. The results showed that the administration of insulin leaf extract at a dose of 300 mg/ BW for rats/day was able to make blood glucose levels significantly different, but the malondialdehyde levels were not significantly different than control rats. In addition, administration of insulin leaf extract at a dose of 300 mg/ BW rats/day to hyperglycemic rats was also able to improve the condition of the Langerhans pancreatic islet towards conditions like control rats. The improvement in the condition of Langerhans pancreatic islet is indicated by the cell nucleus that is colored dark blue with more regular shapes.
Pengaruh Perbedaan Konsentrasi Ekstrak Karapas Udang Terhadap Sifat Fisikokimia Kaldu Bubuk yang Dihasilkan Siti Karomah; Sri Haryati; Sudjatinah Sudjatinah
Jurnal Teknologi Pangan dan Hasil Pertanian Vol 16, No 1 (2021): Februari
Publisher : Faculty of Agricultural Technology, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/jtphp.v16i1.4400

Abstract

Shrimp carapace is one of the fisheries waste products that can be a potential alternative for natural flavoring because it contains a lot of glutamic acid that create umami taste in dishes by turning it into a powdered broth. Powdered broth is a product that has been known as a food additive that is obtained from boiling meat or more commonly known as a seasonings. The purpose of this study is to know how the effect and best treatment of different concentrations of extract from shrimp carapace on the quality of the resulting powder broth. This research was conducted at the Food Engineering Laboratory, Chemistry Laboratory Semarang university and the Chemix Pratama Laboratory Yogyakarta. The design of the experiment used was a completely randomized design with 5 treatments and 4 replications, which gives the concentration of shrimp carapace, which is 3%; 3.5%; 4%; 4.5%; And 5%. The test parameters were water levels, fat levels, protein levels, glutamate levels, and hedonic tests include taste and aroma attributes. To find out the difference between treatment, data was tested with Duncan multiple range test (DMRT) at 5% level. The results have shown that differences in shrimp carapace extract have a significant effect (p <0.05) on water levels, fat levels, protein levels, glutamate levels, and hedonic scores. This study recommends P3 treatment as the best alternative treatment considering water level (4,17%), fat content (1,29%), protein (15,05%), glutamate (10,76%), and being the most preferred by panelists. with the taste attribute score (5.50), and aroma (4.77).
Pengaruh Penambahan Sari Jeruk Nipis (Citrus aurantifolia) sebagai Bahan Penggumpal Alami terhadap Karakteristik Fisik dan Kimia Tahu Kacang Hijau (Vigna radiata) Bhakti Etza Setiani; V. Priyo Bintoro; Rifqi Nur Fauzi
Jurnal Teknologi Pangan dan Hasil Pertanian Vol 16, No 1 (2021): Februari
Publisher : Faculty of Agricultural Technology, Universitas Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26623/jtphp.v16i1.4401

Abstract

Tofu is a product made by beans protein coagulation. The food is relatively cheap, much preferred by all levels of society and highly nutritious. The main nutrient of tofu is protein. This study aims to determine the characteristics of green beans tofu added by lime juice as a completing material and further more, this study also the optimal time aimed to determine presipitate for coagulating green bean protein. The research was conducted in Food Engineering Laboratory and Laboratory of Food and Nutrition Chemistry Faculty of Animal Husbandry and Agriculture Sciences Diponegoro University from March 2017 - May 2017. The experimental design used in this study using Randomized Complete Design (RCD) with 3 treatments and 7 repetitions By treatment of concentration of addition of lemon juice there were 5% for T1, 10% for T2, and 15% for T3. The total water content, total protein content, and texture test results would  tested with Analysis of Variance (ANOVA) with a significance level of 5%. If there is any effect of treatment, it would be continued with Duncan Double Area Test. The results showed that the increasing concentration of lime juice would result in a total water content of 85 %  - 72 %, total protein content of 11.98 % to 8.74 % , textures from 129.61 N - 194.00 N, and the total yield content of 15.20 % - 39.73%.

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