Prediction of moisture content in steamed and dried purple sweet potato using hyperspectral imaging analysis

2021 ◽  
Author(s):  
Suhyeon Heo ◽  
Ji-Young Choi ◽  
Jiyoon Kim ◽  
Kwang-Deog Moon
Keyword(s):  
Moisture Content ◽  
Sweet Potato ◽  
Hyperspectral Imaging ◽  
Imaging Analysis ◽  
Purple Sweet Potato

scholarly journals Kajian Variasi Lama Perendaman Dalam Larutan Kalsium Hidroksida Pada Pembuatan Tepung Ubi Jalar Ungu

2016 ◽  
Vol 1 (1) ◽  
pp. 969-976
Author(s):  
Teguh Pribadi Gunawan ◽  
Rita Khathir ◽  
Ratna Ratna
Keyword(s):  
Weight Loss ◽  
Vitamin C ◽  
Moisture Content ◽  
Sweet Potato ◽  
Starch Content ◽  
Potato Flour ◽  
Soaking Time ◽  
Sun Drying ◽  
Sweet Potato Flour ◽  
Purple Sweet Potato

Penelitian ini bertujuan untuk mengkaji proses pembuatan tepung ubi jalar ungu dengan variasi lama perendaman dalam larutan kalsium hidroksida. Tahapan proses pembuatan tepung ubi jalar adalah pengupasan, pemotongan membentuk chips dengan ketebalan 1 cm, perendamandalam larutan kalsium hidroksida Ca(OH)2, blanching pada suhu 85oC selama 5 menit, pengeringan bertahap dengan penjemuranselama 2 hari dan pengeringan oven selama 6 jam pada suhu 60oC sampai kadar air 10%, penggilingan dan pengayakan. Perendaman dalam larutan Ca(OH)2 konsentrasi 1.000 ppm dilakukan dengan  variasi lama perendaman 0, 15, 30 dan 60 menit. Parameter yang diamati meliputi rendemen, susut bobot, kadar air, kandungan pati, vitamin C, derajat keasaman, dan warna. Hasil penelitian menunjukkan bahwa rendemen yang dihasilkan pada berbagai variasi lama perendaman dalam larutan Ca(OH)2adalah 10,63%-10,79%, sedangkan kadar air tepung ubi jalar ungu diperoleh pada kisaran 8,4-10,27%. Susut bobot tertinggi diperoleh pada proses pengeringan matahari yaitu mencapai ±36,36%, sedangkan susut bobot terendah terjadi pada proses pengayakan yaitu ±3,13%. Kandungan pati tepung ubi jalar ungu berada pada kisaran 74,47-84,83%. Vitamin Ctepung ubi jalar ungu terendah diperoleh pada perendaman 60 menit sebesar 4,40 mg/100g, sedangkanvitamin C tepung ubi jalar ungu tertinggi diperoleh pada perendaman 0 menit yaitu 17,60 mg/100g. Secara umum dapat disimpulkan bahwa terjadi penurunan vitamin C selama proses penepungan. Derajat keasaman tepung ubi jalar ungu diperoleh pada kisaran 4,96-5,27. Berdasarkan analisis warna diperoleh tepung ubi jalar ungu dengan warna ungu ke kehitaman (perendaman 0 menit), ungu pucat (perendaman 15 menit), ungu pekat (perendaman 30 menit), dan ungu keabu-abuan (perendaman 60 menit).The study aimed to evaluate the purple sweet potato flour processing under variations of soaking time in calcium hydroxide solution. The steps of flour processing were pilling, cutting with a thikcness of 1cm, soaking in calcium hidroxide solution, blanching at a temperature of 85 oC for 5 minutes, drying at two stages i.e sun drying for two day and oven drying for 6 hour at  60oC until 10% moisture content miling and sieving. Soaking in calcium hidroxide  concentration of 1,000 ppm was done by variation soaking time of 0, 15, 30 and 60 minutes. The parameters observed were yield, weight loss, moisture, starch content, vitamin C, acidity, and color. The results showed that the yield generated due to variations of soaking time in calsium hidroxide solution was 10.63-10.79%, while the moisture content of the purple sweet potato flour was in the range of 8.4-10.27%. The highest weight loss was obtained in the sun drying process (±36.36%), while the lowest weight loss was occured in the sieving process (± 3.13%). The starch content of purple sweet potato flour was in the range of 74.47-84.83%. The lowest vitamin C of purple sweet potato flour was obtained after 60 minutes soaking (4.40 mg/100g), while the highest vitamin C of purple sweet potato flour was obtained without soaking (17.60 mg/100g). In general it can be concluded that vitamin C had been declined during the flour processing. The acidity of purple sweet potato flour was in range of 4.96 to 5.27. The  color analysis by using L*a*b method showed that there was differences in color due to the variation of soaking time.

scholarly journals Kandungan Antosianin dan Karakteristik Sensori Kue Pia Ubi Ungu

2018 ◽  
Vol 3 (1) ◽  
pp. 284
Author(s):  
Agus Selamet Duniaji ◽  
I A.A. Anom Jambe ◽  
Ni Nyoman Puspawati
Keyword(s):  
Moisture Content ◽  
Water Content ◽  
Sweet Potato ◽  
Sensory Properties ◽  
National Standards ◽  
Anthocyanin Content ◽  
Oven Method ◽  
Sensory Test ◽  
Purple Sweet Potato

The aim of this research is to know the anthocyanin content  and Characteristics of Pia cake of Purple Sweet Potato as well as The Indonesia National standards (SNI) and has sensory properties are acceptable and preferred by consumers. Specific objectives of this study was to determine the effect of the addition of purple sweet potato anthocyanin content, moisture content and texture of thePiaPurple Sweet Potato. This research was carried out to know the substitution of purple sweet potato and wheat such as (100% : O%= T0), (95% : 5%,=T1) (90% : 10%=T2), (85 %: 15%=T3), (80% : 20%=T4 and 75% : 25%=T5). Experiments were performed with 3 repetitions. Parameters measured were anthocyanin content (Apriantono et al., 1989), the water content with the oven method (Selamet Sudarmaji, 1997) and sensory test with Scoring test. The research of results showed that the addition concentration of purple sweet potato 10% give the best results pia cake with the characteristics of the water content of 29.10%, anthocyanin 2.87%, texture preferred (score 6:06), color preferred (6:20) and the flavor is preferred (score 6:53)

scholarly journals The improvement of functional food in yogurt enriched with purple sweet potato (Ipomea batatas var. Ayamurasaki)

2018 ◽  
Vol 43 (2) ◽  
pp. 159
Author(s):  
F. Afiati ◽  
G. Priadi ◽  
F. Setiyoningrum
Keyword(s):  
Moisture Content ◽  
Sweet Potato ◽  
Functional Food ◽  
Ipomoea Batatas ◽  
Skim Milk ◽  
Crude Fiber ◽  
A Value ◽  
Ipomea Batatas ◽  
Factor Ii ◽  
Purple Sweet Potato

he research was conducted to examine the use of purple sweet potato (Ipomoea batatas var. Ayamurasaki) to improve functional food of yogurt. This experiment has 2 factors of treatments. The first factor (i) was concentration of skim milk, i.e. 0%, 3% and 6%; the second factor (ii) was concentration of purple sweet potato, i.e. 0%, 2% and 4% of purple sweet potato. The parameters observed were viability of lactic acid bacteria (LAB), pH, moisture content, protein, fat, carbohydrate, ash and crude fiber and organoleptic. The results showed that there was no interaction between the concentration of skim-milk and the purple sweet potato on total LAB, moisture content and crude fiber. However, the interaction occurred on the levels of fat, protein, carbohydrate and ash. The organoleptic test results that yogurt enriched by 2% purple sweet potato without addition of skim was more preferable by panelist with a value of 3.65.

scholarly journals Potensi Tepung Ubi Jalar Ungu (Ipomea batatas L.) dalam Pembuatan Bolu Kemojo sebagai Makanan Khas Provinsi Riau

2016 ◽  
Vol 8 (1) ◽  
pp. 6-11
Author(s):  
Syahli Putra Turelanda ◽  
Noviar Harun ◽  
Rahmayuni Rahmayuni
Keyword(s):  
Moisture Content ◽  
Protein Content ◽  
Sweet Potato ◽  
Ash Content ◽  
Potato Flour ◽  
Sucrose Content ◽  
Randomized Design ◽  
Sweet Potato Flour ◽  
Completely Randomized Design ◽  
Purple Sweet Potato

(Effect Potential Use of Purple Sweet Potato Flour ss Ingredient in Kemojo Cake, Riau Province Traditional Food) ABSTRACT. The purpose of this study was to obtain an optimal ratio of purple sweet potato flour to wheat flour to produce good quality kemojo cake product. This study uses a completely randomized design (CDR) completely randomized design (CRD) with five treatment. The analyzed of kemojo cake includes moisture content, ash content, protein content, sucrose content and sensory assessment. The result showed that  kemojo cake best treatment is TUJ2 with moisture content of 24.32%, ash content of 0.80%, protein content of 13.25%, sucrose content of 21.82% and descriptive sensory showed light purple colour (score 2.80), a hint of sweet potato flavour (score 3.00), a little bit of purple sweet potato scent (score 3.03), the chewy texture (score 3.00) and panelist favored overall (score 2.06).

scholarly journals The Preparation and Characterization of A Co-Processed Excipient from Purple Sweet Potato (Ipomoea batatas L) Starch and Avicel PH101

2020 ◽  
pp. 344-350
Author(s):  
Muhammad Hengki Purnama Halim ◽  
Ungsari Rizki Eka Purwanto ◽  
Endang Diyah Ikasari
Keyword(s):  
Moisture Content ◽  
Physical Properties ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Raw Materials ◽  
Potato Starch ◽  
Design Expert ◽  
Sweet Potato Starch ◽  
Purple Sweet Potato

The Indonesian pharmaceutical industries still rely on imports for more 90% of active raw materials and excipient raw materials. A research is needed to develop the production of pharmaceutical excipients, especially those derived from natural ingredients, to support the country's economy. One source of natural materials are widely available in Indonesia and can be developed is starch from Purple Sweet Potato (Ipomoea batatas L). Starch is often used as dilluent, disintegrat and binder in tablet formulation. Starch, including starch from Purple Sweet Potato, was an excipient tablet that had bad flowability and compressibility, so that the physical properties need to be improved. One way to improve the characterization of amilum is co-processing. The purpose of this study was to develop a co-process from Purple Sweet Potato Starch and combined with Avicel PH 101 as excipient fillers for tablets. The method used in the preparation of these co-process was wet granulation. The formula determination was caried out with Design Expert 10.0.1 software. Results obtained from experiments and recommendation formula from Design Expert 10.0.1 was verified with One Simple T-test with confidence level of 95%. Based on the results it can be concluded that the increased concentration of purple sweet potato starch increased moisture content and lowering compressibility and density. While the increased concentration of Avicel PH 101 increased compressibility and density; it could lower moisture content and the flowability time. The formula that gave the best characteristic of co-processed was obtained at a concentration of purple sweet potato starch and Avicel PH 101 on 62.493%: 37.507%. Based on One Simple T-Test, there is no significant difference between the experimental results with recommendation formula from Design Expert 10.0.1. From the FT-IR test results may indicate that the formation of the co-process did not change the form of the chemical structure of substances, but only changed the physical properties of substance. Based on the results of SEM, the morphology of the shape bond formation co-process so that the granules become larger and purple sweet potato starch forms a round and partly change shape after do the heating at 60°C. Keyword : Co-processing, Purple_Sweet_Potato, Starch, Avicel_PH101, FTIR

Pengaruh Profilaksis Ekstrak Ubi Jalar Ungu (Ipomoea batatas L.) terhadap Kadar Malondialdehida Hepar Tikus Putih (Rattus norvegicus) Jantan Galur Wistar yang Diinduksi Karagenan

2018 ◽  
Vol 15 (2) ◽  
pp. 146
Author(s):  
BRILIAN DINANTI ◽  
FITRI HANDAJANI
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Wistar Rats ◽  
Group Method ◽  
Control Group ◽  
Intraplantar Injection ◽  
Significant Difference ◽  
Male Wistar Rats ◽  
Potato Extract ◽  
Purple Sweet Potato

<p>Liver is an organ with complex metabolism. When the liver is inflamed, cellular immunity will defend against inflammatory agents by stimulating immune cells to produce reactive oxygen species (ROS). Excessive ROS accumulation cause oxydative stress with increased  liver malondialdehyde (MDA) level. Some researches showed that purple sweet potato contain flavonoids (anthocyanins) that functioned as antioxydants. This study aimed to show the prophylactic effect of purple sweet potato extract to the liver MDA level of male Wistar rats induced by carrageenan.</p><p>This study used post-only control group method using 18 male Wistar rats divided into 3 groups: group of rats without treatment, group of rats induced by 0,1 ml of 1% carrageenan by intraplantar injection on day-8, and group of rats given with 872 mg/kgBW of purple sweet potato extract for 7 days and induced by 0,1 ml of 1% carrageenan. In the end of the study, the liver MDA levels were measured by Thio-Barbituric Acid method on each groups.</p><p>The results of One-Way ANOVA test showed there was no significant difference (p = 0,290) between group of rats without treatment (<em>x̅</em>= 207,50) and group of rats induced by carrageenan (<em>x̅</em>=233,17). Then, there is no significant difference (p = 0.978) between group of rats induced by carrageenan and group of rats given with prophylactic purple sweet potato extract and induced by carrageenan (<em>x̅</em>= 232,50).</p><p>The conclusion of this study is giving intraplantar injection of carrageenan can increase liver MDA level insignificantly and giving prophylactic purple sweet potato extract has an effect to decrease the liver MDA level of rats induced by carragenan insignificantly because it contains anthocyanins as antioxidants.</p><p> </p><strong>Keywords: </strong>Liver, <em>Ipomoea batatas</em> L., Malondialdehyde, Anthocyanins

PENGARUH PEMBERIAN FRAKSI ETILASETAT KULIT UBI JALAR UNGU TERHADAP KADAR MALONDIALDEHID (MDA) SERUM MENCIT PUTIH JANTAN HIPERGLIKEMIA

2018 ◽  
Vol 8 (2) ◽  
pp. 144
Author(s):  
Ria Afrianti
Keyword(s):  
Blood Glucose ◽  
Statistical Analysis ◽  
Sweet Potato ◽  
Ethyl Acetate Fraction ◽  
Serum Levels ◽  
Negative Control ◽  
Control Group ◽  
Glucose Levels ◽  
Blood Glucose Levels ◽  
Purple Sweet Potato

This study aims to determine the effect giving of ethylacetate fraction of leather  purple sweet potato (Ipomoea batatas (L.) Lam, on levels of malondialdehyde (MDA) serum in mice hyperglicemia were induced with streptozocin dose of 50 mg/kgBW. Mice were divided into 5 groups, each group consisting of 3 tails, group I is a negative control, group II is a positive control, group III,IV and V is given ethylacetate fraction a dose of 100 mg/kgBW, 300 mg/kgBW, and 600 mg/kgBW. Ethyl Acetate Fraction leather purple sweet potato given orally for 15 days after the animal is declared hyperglicemia and measurement of blood glucose levels on 5, 10, and 15 day after giving test preparation in animal experiments. On the 16 day throughout the mice were taken serum levels measured malondialdehid. The statistical analysis results showed that giving of ethyl acetate fraction of leather purple sweet potato at a dose of 100 mg/kgBW, 300 mg/kgBW, and 600 mg/kgBW can lower blood glucose levels in mice hyperglycemia significantly (p<0.05). Malondialdehid levels on average in each group is 1.35 nmol/ml, 3.00 nmol/ml, 2.72 nmol/ml, 2.20 nmol/ml and 2.61 nmol/ml, the results of statistical analysis showed a decrease in melondialdehid serum levels were significantly (p<0.05), where a dose of 300 mg/kgBW is an effective dose for lowering blood glucose levels followed by decreased levels of malondialdehid which give effect approaching negative control.

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