Jurnal Teknologi & Industri Hasil Pertanian
Not a member yet
250 research outputs found
Sort by
SIFAT SENSORY DAN FUNGSIONAL BERAS ANALOG DARI CAMPURAN ONGGOK TERFERMENTASI DAN KETAN HITAM
No full textThere are a lot variety of products can be used for rice substitute as a staple food. One of them is analog rice processed from onggok (solid waste from tapioca production) formulated mixed with black waxy rice (BWR). Onggok has poor quality when applied on food products, therefore natural fermentation and addition of BWR can be used as an alternative to improve it. The objective of this research was to find out the proportion of onggok and BWR in producing analog rice that has the best organoleptic and contains functional food. This research was conducted within a complete randomized block design with a single factor and four replications. The single factor was the formulation of onggok and BWR consisted of 6 levels: 100:0 (F0), 90:10 (F1), 80:20 (F2), 70:30 (F3), 60:40 (F4), 50:50 (F5) The results showed that the best formulation was found on F3 (70% onggok and 30% BWR). The best analog rice had the characteristics of purple, a mild BWR aroma, and slightly liked in overall acceptance of raw sample. The cooked rice had the characteristics of black-purple in color, mild BWR in aroma, slightly chewy in texture, mild BWR in taste, and slightly liked in overall acceptance. The moisture, ash, lipid, protein and carbohydrate contents were 3.0%, 0.9%, 1.4%, 6.2%, and 86.3% . The conversion of rice to glucose as hidrolyzed using α amylase was 12.4%, and total phenolic content was 14,5 mg/g. Keywords: analog rice, black waxy rice, onggok, total phenoli
PENGARUH PENAMBAHAN GLUKOSA DAN SARI BUAH JERUK (Citrus sinensis) TERHADAP KARAKTERISTIK MINUMAN SINBIOTIK CINCAU HIJAU (Premna oblongifolia Merr.)
No full textThis study was aimed to determine the concentration of orange juice (Citrus sinensis) and glucose which produce green cincau sinbiotic beverage with the best characteristics, has high concentration of lactic acid bacteria and antioxidant activity as well as good sensory properties. Factorial treatment was arranged in a Complete Randomized Block Design with two factors and three replications. The first factor was the concentration of orange juice (J), consisted of 5 levels (0%, 5%, 10%, 15%, and 20%), and the second factor was the concentration of glucose (K) that consisted of 3 levels (2%, 3%, and 4%). The homogeneity and additivity of the data were analyzed using Barlett and Tuckey tests. Then the ata were analyzed with Analysis of Varians, and further analyzed using orthogonal polynomials on the significant level of 5% or 1%. The results showed that the addition of 2% glucose and 0% orange juice produced the best characteristics of green cincau sinbiotic beverage with concentration of lactic acid bacteria 4,59 x 1010 colonies/ml, total acid 0,29%, pH 4,13, antioxidant activity of 54,88% RSA, taste of 3,52 (like), colors of 2,87 (rather like), and flavor of 2,95 (rather like). Keyword : antioxidant, green cincau, sinbioti
PROSES PENGAMBILAN KEPUTUSAN KONSUMEN DAN ATRIBUT PRODUK KOPI INSTAN DALAM SACHET [Consumer Decision Making Process and Product Attributes of Instant Coffee]
No full textThe objectives of this research were to observe the decision making process and the influence of product attributes in consuming of instant coffee products in sachets. This research used questionnaires to obtain information on the characteristics and consumer behavior of respondents. Data were analyzed using descriptive analysis and importance attributes. The results showed that process of buying through the stages in the purchase decision process, namely: a). need recognition: the main benefits expected was freshness of coffee, highest frequency was once a day; and the main barrier was product quality; b). searching of information: the main source was promotion; c). alternative evaluation: The main factor in evaluation was taste, the known brand of instant coffee were Torabika, Nescafe, Kopi Luwak, ABC, Top, Good Day; d). The decision to buy: the main reasons to buy was taste; purchase decision depending on the situation, most influential are friends. e). post-purchase evaluation: customers are willing to keep buying previous products.. The highest product attributes importance of instant coffee were the highest sense of 4.34; aroma 4.23; and freshness of 4.11 which is the characteristics specialty[H1] of coffee. Keywords: consumer, instant coffee, product attributes. [H1] Has been change
PENYUSUNAN DRAFT STANDARD OPERATING PROCEDURE (SOP) PEMBUATAN GULA MERAH KELAPA (STUDI KASUS DI PENGRAJIN GULA MERAH KELAPA DESA PURWOREJO KEC. NEGERI KATON KAB. PESAWARAN)
No full textThe objective of this research was to improve coconut brown sugar quality produced by coconut sugar farmers in Purworejo Village Negeri Katon , District in Pesawaran Regency by composing SOP draft. This research was conducted through five stages: (1) field observations to collect the data form coconut sugar farmers and coconut sugar producers using interviews and questionnaires; (2) determination of critical point and optimal conditions of processing stage; (3) composing of SOP draft; (4) testing SOP draft, and (5) observations to products after SOP draft implementations on particular coconut brown sugar producers. The data were analyzed descriptively. The results showed that the moisture contents of coconut sugar before and after SOP draft implementations were 9.47% and 7.12% respectively. This indicates that coconut sugar product after SOP draft implementation contained lower moisture content compared to those without SOP draft implementation, and the product had fulfilled SNI requirement for moisture content. The implementation of SOP draft had also caused decreased in ash content from 2.22% to 5,7% in those without SOP draft and it was close to SNI quality requirements (maximum 2.0%). The average content of reducing sugar of the product implementing SOP draft was 3.39% compared to those without SOP draft implementation (5.46%), and it met the SNI quality requirement (maximum 10%). Organoleptically, coconut brown sugar produced after SOP draft implementation had less bitter taste, harder texture and brown yellowish or brighter color , whereas the ones without SOP draft implementation had darker color. The overall acceptance of coconut sugar products after SOP draft implementation was more desirable compared to those of without SOP draft implementation. Keywords : coconut sugar, Pesawaran, SOP draft
PRODUKSI BIOETANOL DARI KULIT PISANG MELALUI HIDROLISIS ASAM SULFAT [The Production of Bioetanol from Banana Peel Trough Sulphuric Acid Hidrolisis]
No full textBanana fruit is one of main product of Lampung Province. Banana is commonly utilized as raw material of banana chip production and its peel can be converted into bioethanol. The Objectives of this study were to find out the optimum treatments of hydrolysis and fermentation for producing bioetanol. Two steps, namely hydrolysis and fermentations, were carried out in this study. In the hydrolysis step, two treatments - H2SO4 consentration and hydrolysis duration – were implemented. The H2SO4 concentration treatment consisted of five level (0, 0.025, 0.050, 0.075, and 0,100 M); and the hydrolysis period treatment consisted of two level (15 dan 30 minutes). Bioethanol fermentation was carried out at room temperature for 72 hours with Saccharomyces cerevisiae as starter at concentration of 0%, 5%, 10%, and 15% (w/v). The treatments were arranged in Randomized Complete Block Design (RCBD) with three replications. Before and after hydrolysis, the cellulose, hemicellulose, and lignin contents of banana peel were determined. The reducing sugar concentrations were measured after hydrolysis, and bioethanol concentrations were measured after fermentation. The data of the cellulose, hemicellulose, lignin, reduced sugar, and bioethanol were tabulated and analyzed descriptively. The results of this study showed that the optimum treatment for hydrolysis was H2SO4 solution at a concentration of 0.050 M at 1210C for 15 minutes. The treatment yielded reduced sugar at a concentration of 11,26mg/100 mL. The optimum treatment for fermentation was a starter concentration of 10% (w/v) which produced bioethanol at a concentration of 0.03% (v/v). Keywords : banana peel, bioethanol, hydrolysis, H2SO4, reducing sugar
PENGARUH PENAMBAHAN SARI BUAH TERTENTU TERHADAP KARAKTERISTIK FISIK, KIMIA, DAN SENSORI SARI TOMAT
No full textThe objectives of this research were to find out the physical, chemical, and sensory characteristics of the mixed tomato juice produced and to determine the suitable fruit for tomato mixed juice. The experiment was arranged in a completely randomized block design with 4 replications. The fruit mixed with the tomato juice was either peanapple, orange, red guava, mango, passion fruit, or soursop. The formulation of mixture contained of 60 % of tomato juice and of 40 % added fruits juice. The result showed that the addition of fruits juice to the tomato juice significanty affected color, flavor, taste, overall acceptance, pH, total dissolved solid, vitamin C, and stability of mixed juice. More over the addition of red guava resulted in the best characteristic of mixed tomato juice. The formulation of tomato juice mixed with red guava gave the most acceptable. The mixed juice of guava and tomato had pH of 4,4, total dissolved solid of 6,90 Brix, level stability of 0,53, antioxidant activity of 87,727%, and vitamin C of 60,4 mg/100g . Keywords: antioxidant activity, mixed-fruit juice, red guava, tomato
PROFIL PROSES FERMENTASI RUSIP DENGAN PENAMBAHAN GULA AREN CAIR
No full textThis research was aimed to determine the microbiological and chemical characteristics of rusip with the addition of liquid palm sugar during fermentation. Fermentation was carried out for 7 days and the observation was done after fermentation time of 0 hours (H1), 12 hours (H2), 24 hours (H3), 36 hours (H4), 2 days (H5), 3 days (H6), 4 days (H7), 5 days (H8), 6 days (H9) and 7 days (H10). To obtain rusip fermentation profiles, the data were presented descriptively in tables and graphs. Total lactic acid bacteria and lactic acid of rusip increased during fermentation, while pH, total fungi and total microbial decreased during fermentation. The chemical and microbiological characteristics of rusip on the seventh day of fermentation was : pH of 5.97, total lactic acid bacteria of 8.04 log CFU/g, total fungi of 2.60 log CFU/g, total microbial of 9.87 log CFU/g, total lactic acid of 5.64% and total volatile nitrogen (TVN) of 109.07 mg N/100 g. Keywords : liquid palm sugar, profil fermentation, rusi
PENGARUH KONSENTRASI PENAMBAHAN TEPUNG TEMPE TERHADAP KARAKTERISTIK TORTILLA LABU KUNING (The Effect of Tempe Flour Addition Concentration on Pumpkin Tortilla Characteristics)
No full textThe objective of this research was to observe the physical and chemical characteristics of pumpkin tortilla with tempe flour addition. The experiment was designed using non Factorial Randomized Design with six treatments and each treatment was replicated three times. The treatments were 5%, 10%, 15%, 20%, 25% and 30% addition of tempe flour per 90 g of tapioca. Texture, moisture content, ash content, and protein content were analyzed. The results showed that the addition of tempe flour had significant effect on protein content. Pumpkin tortilla with tempe flour addition had 830.70 mm/s to 1316 mm/s of texture, 3.97% to 4.92% of moisture content, 1.22% to 1.48% of ash content, and 8.96% to 13.22% of protein content. Keywords : pumpkin, tempe flour, tortill
PENGARUH JUMLAH PELARUT ETANOL DAN SUHU FRAKSINASI TERHADAP KARAKTERISTIK LEMAK KAKAO HASIL EKSTRAKSI NON ALKALIZED COCOA POWDER [The effect of amount of ethanol solvent and temperature fractionation on the characteristic of cocoa fat from the extracti
No full textCocoa and its derivative products are examples of very potential export comdities that could contributed to an increase in foreign exchange. The extraction of non-alkalized cocoa powder resulted in pure cocoa extract as the main product and cocoa fat as by product. Cocoa fat can be exploited further to produce some final products, either food or non food products. This research was aimed to study the effects of ethanol addition for extraction and fractionation temperature on the characteristic of cocoa fat. This study used a Complete Randomized Block Design with two factor treatments and three replications. The first factor was quantity of ethanol 450 ml, 600 ml, and 750 ml, and the second factor was temperature for fractionation 15oC, 18oC, and 21oC. The data obtained were analyzed using Bartlett test for homogenity. Tuckey Test was used for analyzing their additivity, then the data were analyzed using ANOVA to see differences among treatments. The data were further tested using Least Significant Difference at of 5% level of significancy to find the best characteristic. The results showed that the best characteristic of cocoa fat obtained from the treatment of the addition of 750 ml ethanol and fractionation temperature 15oC. It resulted in fat yield of 35.0382%, fat content of 86.742%, its flavor was close to characteristic of cocoa flavor ,and the composition of unsaturated fatty acids was 49, 71% of the total fatty acids. Keywords: cocoa fat, ethanol solvent, fractionation temperatur
PENGARUH PENAMBAHAN UBI JALAR UNGU TERHADAP SIFAT ORGANOLEPTIK ES KRIM SUSU KAMBING PERANAKAN ETAWA [The Influence of Purple Sweet Potato Increment og Organoleptic Characteristic of Goat Milk Ice Cream of Etawa Generation]
No full textGoat milk is perishable foodstuffs and has low shelf life. One way to preserve it is process goat milk into ice cream. This is usefulforreducingthe damagenutritiongoat milk. Purple sweet potatoes which contain some anthosianin can be added to inprove the texture. However, the amount of purple sweet potato added will affect the texture and body of icecream. Therfore this research is needed. This research was purposed to find concentration of purple sweet potato that will produce the best ice cream especially on organoleptic characteristic. The experiment was arranged in Latin Square design in single factor that consist of 5 levels concentrations of purple sweet potato paste. There were 0% (reference), 10%, 20%, 30%, and 40% (b/b) with 5 replications. Data were analyzed using analysis of variance . furtehre tested using the HSD Test in 5% level of signiificance. The The results showed that addition of 30% sweet potato paste produced the best quality of goat milk ice cream of Etawa . The score of aroma was 3,5 (not specific goat milk), the taste’s score was 3,47 (sweet), color’s score was 2,8 (rather purple), texture’s score was 3,5 (soft), and the overall of acceptance was 3,203 (rather like). This ice cream contained water, protein, fat, ash, crude fiber, and total carbohidrate as amuch as 66,98%, protein was 5,5%, 11,86%, 1,34%, 0,3% and 14,2%. Keyword : goat milk, ice cream, purple sweet potat