scholarly journals Skrining Golongan Senyawa Kimia dan Pengujian Aktivitas Antioksidan Ekstrak Ubijalar (Ipomoea batatas (L.)Lam.) Varietas Lokal di Distrik Skanto Kabupaten Keerom Provinsi Papua

2020 ◽  
Vol 12 (2) ◽  
pp. 85-92
Author(s):  
Yuliana H. Rumsarwir ◽  
Linus Y. Chrystomo ◽  
Maklon Warpur
Keyword(s):  
Sweet Potato ◽  
Potato Variety ◽  
Ipomoea Batatas ◽  
Agricultural Research ◽  
Food Supplement ◽  
Native Plant ◽  
Phytochemical Screening ◽  
Sweet Potatoes ◽  
Local Varieties ◽  
Purple Sweet Potato

Sweet potato (Ipomoea batatas) is native plant comes from the American continent. It began to spread throughout the world, especially in the tropical countries in the 16th century. Papua Province is one of the regions with the largest area of harvested sweetpotato in Indonesia, therefore there is a high chance to develop food independence in Papua. Because of the Papuan people are accustomed consuming non-rice food. The study was conducted in the Biology Laboratory and the Pharmacy laboratory of MIPA Faculty Cenderawasih University and also the supporting Laboratory of The Papua Agricultural Research and Development Center (Balitbangtan). The purpose of  this research is to test the quality of flour of Keerom sweet potato varieties. Method for flour of sweet potato quality testing were using phytochemical screening  to determine the chemical compound group and using antioxidant test with the DPPH (1-diphenyl-2-picrylhydrazyl) method.  The results of the description of the Skanto District Keerom sweet potatoes in the field  were three (3) local varieties including Weayuken (purple sweet potato), Musanaken (yellow sweet potato) and Hiho (white sweet potato). The result of phytochemical  screening show that the purple sweet potato variety has more chemical compounds consist of tannins, quinones, flavonoids, terpenoids and alkaloids compared to white sweet potato consist of alkaloids only and yellow sweet potato consist of tannins, flavonoids, terpenoids and alkaloids. The result of antioxidant activity tests to flour extract ethanol  has IC50values of 299.82 ppm (purple sweet potato), 301.18 (yellow sweet potato), 1027.98 ppm (white sweet potato) respectively. So can be conclude that the purple sweet potato variety is the best. It was suggested for further research to isolate bioactive compounds and test antioxidants to other varieties in other centers areas of sweetpotato culture which have potential to develop for food, supplement and tradisional drugs.Key words: Sweet potato; local varieties; flour quality; phytochemical screening; antioxidant test

EFFECT OF HEAT TREATMENT ON THE ANTIOXIDANT ACTIVITIES OF TWO CULTIVARS OF SWEET POTATOES

2016 ◽  
Vol 78 (6-12) ◽  
Author(s):  
Amir H. M. S. ◽  
Nurun N. ◽  
Nida Iqbal ◽  
Nur F. R. ◽  
Lee L. H. ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Antioxidant Activities ◽  
Sweet Potatoes ◽  
Moist Heat ◽  
Dry Heat ◽  
Significant Difference ◽  
Ic50 Values ◽  
Purple Sweet Potato

Natural sources of antioxidants are derived from fruits, vegetables and wine, whilst artificial supplements are from teas and spices. Sweet potato (Ipomoea batatas) is an excellent natural source of vitamins and minerals, and likely a great source of antioxidant. The objective of this study  is to analyze the antioxidant activity of orange sweet potato (Vitato) and  purple sweet potato (All purple), prepared as heat dry and  moist heat for 30 minutes at 100oC. All the samples were obtained from Pasir Puteh and MARDI Telong, Bachok, Kelantan, respectively. Both samples were soaked into methanol to obtain the crude extract prior to analyzing for antioxidant activity by using 2, 2-diphenyl-1-picryl hydrazyl (DPPH). IC50 values of dry heat and moist heat Vitato were 0.40mg/L and 0.20mg/L while dry heat and moist heat, All purple were 0.32mg/L and 0.19mg/L, respectively. Both moist heat samples enjoyed higher scavenging activities compared to dry heat samples. However, the All purple sample of moist heat is the most superior one. Significant difference of IC50values between dry heat and moist heat sample differ significantly. Thus, this study clearly demonstrated that moist heat sweet potato exhibited  excellent increase in antioxidant activity.

scholarly journals INVENTARISASI DAN KARAKTERISASI PLASMA NUTFAH PERTANAMAN UBI JALAR (Ipomoea batatas L.) DI PULAU LOMBOK

2020 ◽  
Vol 8 (1) ◽  
pp. 136
Author(s):  
Sumarjan Sumarjan ◽  
Lestari Ujianto ◽  
Agung Bagus Darma
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Food Sources ◽  
Sweet Potatoes ◽  
Local Varieties ◽  
Potato Plants ◽  
Potato Germplasm ◽  
High Level ◽  
Descriptive Method ◽  
Lombok Island

Lombok Island as an area that still has a high level of food insecurity is deemed necessary to develop tuber crops such as sweet potatoes, this is to support the diversity of existing food sources. This study aims to determine: 1) sweet potato germplasm cultivated on Lombok Island; and 2) the characteristics of sweet potato germplasm on Lombok Island. This research uses a descriptive method. Inventarization is carried out by the exploration method, and using cluster analysis which is then displayed in the form of a phenogram. The results showed: 1) obtained 17 accessions of sweet potato plants spread in 4 districts of Lombok Island; 2) the accessions found consisted of accessions of Sweet Potato KLU, Honey KLU, Purple 04 KLU, Orange Lobar, White Lobar, Purple 01 Lobar, Purple 02 Lobar, Purple 03 Lobar, Ornamental Attic, Attic Yellow, Attic White, Purple 01 Attic, Purple 02 Attic, Honey Lotim, Sokan Lotim, Purple 05 Lotim, and Purple 06 Lotim; 3) the cause of the differences in the characteristics of all observed accessions is genetic factors that are supported by different growing environmental conditions. In the accession of Sweet Potato Beduk KLU and Sokan Lotim are local varieties of sweet potato from Lombok Island, so it needs to be developed to maintain local superior sweet potato varieties from Lombok Island.

scholarly journals Perbandingan Kadar Glukosa Pada Ubi Jalar Ungu (Ipomoea batatas Var Ayamurasaki) Menggunakan Metode Luff Schoorl

WARTA FARMASI ◽  
2019 ◽  
Vol 8 (2) ◽  
pp. 10-19
Author(s):  
Reymon Reymon ◽  
Nur Saadah Daud ◽  
Feny Alvianty
Keyword(s):  
Diabetes Mellitus ◽  
Sweet Potato ◽  
High Glucose ◽  
Ipomoea Batatas ◽  
Degenerative Diseases ◽  
Sweet Potatoes ◽  
Glucose Levels ◽  
Low Carbohydrate ◽  
Purple Sweet Potato ◽  
Different Levels

ABSTRAK Asupan makanan yang mengandung kadar glukosa tinggi perlu diperhatikan untuk mengurangi risiko penyakit degeneratif seperti diabetes mellitus. Hal ini dapat diatasi dengan mengkonsumsi pangan karbohidrat rendah seperti umbi-umbian seperti ubi jalar ungu(Ipomoea batatasVar Ayamurasaki).Penelitian ini bertujuan untuk mengetahui kadar glukosa yang terdapat pada ubi jalar ungu rebus, kukus, bakar dan goreng. Metode yang digunakan adalah eksperimen. Sampel ubi jalar ungu diolah dengan cara direbus, kukus, bakar dan goreng. Sampel yang telah diolah dianalisis kadar glukosanya dengan menggunakan metode Luff Schoorl secara triplo. Berdasarkan hasil penelitian menunjukkan bahwa semua perlakuan mengandung kadar glukosa dengan tingkat yang berbeda pada sampel ubi jalar ungu rebus, kukus, bakar dan goreng berturut-turut yaitu 3,30%, 4,92%, 7,72%, dan 7,36%. Sehingga dapat disimpulkan kadar glukosa terendah diperoleh dari sampel ubi jalar ungu rebus.   Kata kunci : Glukosa, Ubi jalar ungu, Luff Schoorl   ABSTRACT Intake of foods containing high glucose levels needs to be considered to reduce the risk of degenerative diseases such as diabetes mellitus. This can be overcome by consuming low carbohydrate foods such as tubers such as purple sweet potato (Ipomoea batatas Var Ayamurasaki).This study aims to determine the glucose levels found in boiled, steamed, roasted and fried purple sweet potatoes. The method used is an experiment. The sample of purple sweet potato is processed by boiling, steaming, roasting and frying. Samples that have been processed are analyzed for glucose levels using the Luff Schoorl method in triple. Based on research results showed that all treatments contained glucose levels with different levels in the samples of purple sweet potato boiled, steamed, roasted and fried respectively at 3.30%, 4.92%, 7.72%, and 7.36%. So that it can be concluded that the lowest glucose level was obtained from a sample of boiled purple sweet potato.  Keywords: Glucose, purple sweet potato, Luff Schoorl

scholarly journals PHYTOCHEMICAL SCREENING AND GASS CROMATOGRAPHY – MASS SPECTROMETER (GC-MS) ANALYSIS ETHANOL EXTRACT OF PURPLE SWEET POTATO (Ipomoea batatas L.)

2019 ◽  
Vol 2 (2) ◽  
pp. 28-30
Author(s):  
Surti Kurniasih ◽  
Dina Dyah Saputri
Keyword(s):  
Sweet Potato ◽  
Mass Spectrometer ◽  
Ipomoea Batatas ◽  
Phytochemical Screening ◽  
Potato Leaf ◽  
Active Compounds ◽  
Ms Analysis ◽  
Purple Sweet Potato ◽  
Antibacterial And Antifungal ◽  
Sweet Potato Leaves

Purple sweet potato (Ipomoea batatas L.) leaves are extremely versatile that possesses high value. Sweet potato (Ipomoea batatas L.) leaves have secondary metabolism compounds that used as antibacterial and antifungal. The content of secondary metabolite compounds contained in plants an important role in providing antibacterial and antifungal activity so that this study was conducted to develop the utilization of purple sweet potato leaves through phytochemical screening. Phytochemical screening aims to provide an overview of the class of compounds contained in purple sweet potato leaf plants including of alkaloids, steroids-triterpenoids, saponins, flavonoids, and tannins test. Samples were taken from the local community of Bogor. The extract is made by extracting the simplicia of positive purple sweet potato leaves containing alkaloid, steroids-triterpenoids, saponins, flavonoids, and tannins. Further identification of active compounds was performed by Gass Cromatography-Mass Spectrometer (GC-MS) analysis to detect the active compound contained in purple sweet potato leaf extract more specifically. GC-MS analysis results show several active compounds including: 1.4-Benzenediol (CAS) Hydroquinone, Benzenesulfonic acid 4-hydroxy (CAS), Hexadecanoic acid (CAS) Palmitic acid.

scholarly journals Uji Skrining Fitokimia Ekstrak Etanol Daun Ubi Jalar Ungu (Ipomoea Batatas L)

2019 ◽  
Vol 1 (1) ◽  
pp. 1-7
Author(s):  
Agus Susanto ◽  
Hardani ◽  
Sri Rahmawati
Keyword(s):  
Sweet Potato ◽  
Chemical Structure ◽  
Ipomoea Batatas ◽  
Chemical Compounds ◽  
Sweet Potatoes ◽  
Potato Leaf ◽  
Food Ingredients ◽  
Purple Sweet Potato ◽  
Electron Deficiency ◽  
Sweet Potato Leaves

Purple sweet potato is a very familiar plant for us, and the most common is white sweet potato, purple, yellow ororange. The advantages of colored purple sweet potatoes contain anthocyanins. Anthocyanins are a secondarymetabolite of flavonoids and polyphenols that can act as antioxidants. This concentration of anthocyanins is whatcauses some kind of purple potato to have a gradient of different shades of purple. Anthocyanins provide excellenthealth effects namely as antioxidants and anticancer due to electron deficiency in its chemical structure so that it isreactive to resist free radicals. Sweet potato leaves can also be utilized as food ingredients as well as potentiallymedicines for various diseases. Purple sweet Potato (Ipomoea batatas L) is one of the agricultural commodities inIndonesia that has a number of production is quite abundant and can be used as a traditional medicine. Theproblem formulation in this study is whether purple sweet potato leaf extract (Ipomoea batatas L.) contains thechemical compounds of alkaloids, falovonoids, tannins and saponins.The purpose of this research is to know thecontent of chemical compounds in purple sweet potato leaf (Ipomoea batatas L). This research is an experimentalstudy that is by observing and conducting experimental observations of the group in various treatment conditions.The sample used in this study is the purple sweet potato leaf (Ipomoea batatas L). The results of this study showedthat the purple sweet potato leaves were positively contained.

Extraction Parameter Studies for Anthocyanin Extraction from Purple Sweet Potato Variety TNG73, Ipomoea Batatas, L

2010 ◽  
Vol 26 (3) ◽  
pp. 441-446 ◽  
Author(s):  
C. Y. Lien ◽  
A. Y. F. Lee ◽  
C. F. Chan ◽  
Y. C. Lai ◽  
C. L. Huang ◽  
...  
Keyword(s):  
Sweet Potato ◽  
Potato Variety ◽  
Ipomoea Batatas ◽  
Extraction Parameter ◽  
Purple Sweet Potato

scholarly journals Efek Pemberian Ekstrak Etanol Daun Dan Batang Ubi Jalar Ungu (Ipomoea batatas L.) Terhadap Penurunan Kadar Glukosa Darah Pada Tikus Jantan Galur Wistar Yang Diinduksi Aloksan

2018 ◽  
Vol 1 (3) ◽  
pp. 139-143
Author(s):  
Haryoto Haryoto ◽  
Ermia Septiana Devi
Keyword(s):  
Blood Glucose ◽  
Blood Glucose Level ◽  
Sweet Potato ◽  
Glucose Level ◽  
Ipomoea Batatas ◽  
Ethanol Extract ◽  
Male Rats ◽  
Sweet Potatoes ◽  
Post Test ◽  
Purple Sweet Potato

Tanaman ubi jalar ungu (Ipomoea batatas L.) mudah didapat dan banyak kegunaannya,terutama bagian umbi ubi jalar ungu yang banyak diolah masyarakat sedangkan bagian daun dan batang pemanfaatnya belum maksimal. Umbinya telah diketahui mempunyai aktivitas dapat menurunkan kadar gula darah. Penelitian ini bertujuan untuk mengetahui efek penurunan kadar glukosa darah dari ekstrak etanol daun dan batang ubi jalar ungu serta golongan senyawa yang terkandung dalam ekstrak. Desain penelitian menggunakan randomized pre-test post-test kontrol grup desain. Pada penelitian ini menggunakan 15 ekor tikus jantan galur wistar dan dibagi menjadi 5 kelompok yaitu kontrol negatif (akuades), kontrol positif (metformin 45 mg/kgBB), kelompok perlakuan ubi jalar ungu dosis 150; 300; 600 mg/kgBB, sebelumnya masing –masing tikus dinduksi dengan aloksan 150 mg/kgBB, dan dilakukan pemantauan selama 14 hari. Pemeriksaan kadar gula darah menggunakan spektrofotometer visibel dengan panjang gelombang 500 nm. Data dianalisis secara statistik untuk mengetahui perubahan kadar gula darah. Hasil yang didapat dengan pemberian ekstrak pada dosis 150, 300, dan 600 mg/kgBB selama pemantauan 14 hari dapat menurunkan kadar gula darah berturut – turut menjadi 96,33 ± 4,72 ; 66,67 ± 16,16 ; dan 142,67 ± 27,06 mg/dL. Ekstrak etanol daun dan batang ubi jalar ungu memiliki kandungan senyawa yaitu alkaloid, flavonoid, saponin, tanin dan senyawa fenolik.   The purple sweet potato plant (Ipomoea batatas L.) is easy to obtain and has many uses, especially the purple sweet potato tubers which are mostly utilized by the people, while the utilization of its leaves and stem are not maximized. Its tuber has been known to have activity in  reducing blood sugar levels.This research aimed to evaluate the effect of ethanol extract of leaves and stems of purple sweet potatoes in reducing blood glucose level as well as to identify its chemical constituents. The study was design by a randomized pre-test post-test control group. The animal used were 15 wistar male rats which divided into 5 groups, these include negative control (distilled water), positive control (metformin 45 mg/kgBW), treatment group of purple sweet potatoes with the doses of 150; 300; 600 mg/kgBW, before the treatment all rats were induced by aloxan 150 mg/kgBW, and all groups were observed for 14 days. Blood glucose level was determined using UV-Vis spectophotometer at wavelength of 500 nm. The data were analyzed statistically to evaluate blood glucose level alteration.  The result showed that the extract at doses of 150, 300, dan 600 mg/kgBW decrease blood glucose level in 14 days observation, the blood glucose levels were 96.33 ± 4.72 ; 66.67 ± 16.16 ; and  142.67 ± 27.06 mg/dL, respectively. The ethanol extract of leaves and stem of purple sweet potatoescontained alkaloids, flavonoids, saponins, tannins and phenolic compounds

Ultrasound-Assisted Anthocyanin Extraction of Purple Sweet Potato Variety TNG73,Ipomoea batatas, L

2012 ◽  
Vol 47 (8) ◽  
pp. 1241-1247 ◽  
Author(s):  
Ching-Yi Lien ◽  
Chin-Feng Chan ◽  
Yung-Chang Lai ◽  
Che-Lun Huang ◽  
Wayne C. Liao
Keyword(s):  
Sweet Potato ◽  
Potato Variety ◽  
Ipomoea Batatas ◽  
Ultrasound Assisted ◽  
Purple Sweet Potato

scholarly journals PKM Teknologi Fermentasi Tape Jusinta di Pondok Pesantren Puteri Yatama Mandiri Kabupaten Gowa

DEDIKASI ◽  
2020 ◽  
Vol 22 (2) ◽  
Author(s):  
Nurhayani H. Muhiddin ◽  
Ratnawaty Mamin ◽  
Hasanuddin Hasanuddin
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Boarding School ◽  
Sweet Potatoes ◽  
Manihot Esculenta Crantz ◽  
The Public ◽  
South Sulawesi ◽  
Cassava Production ◽  
Purple Sweet Potato ◽  
Fermentation Technology

The target partners in the Public Partnership Program (PKM) of Jusinta Tape Fermentation technology are students at the XII grade SMA Yatama Mandiri Islamic Boarding School, Gowa Regency. The location of the Islamic boarding school is in the area of Pallangga Subdistrict, Gowa Regency, which has the first highest cassava production and second highest sweet potatoes production land in South Sulawesi.. The implementation of activities is supported by the field of expertise of the implementing team related to the results of research in the form of a tape product called "Tape Jusinta" (Muhiddin, et al., 2018). This tape is made through the fermentation process of a mixture of purple sweet potato tubers and cassava roots using a local ragi tape starter. The process of making tape from purple sweet potato (Ipomoea batatas L.) and cassava roots (Manihot esculenta Crantz) with a local ragi tape starter, has received patent certificate in January 2020. Another thing that supports the potential of students who really need knowledge development and skills to grow economically productive businesses with Islamic boarding schools located in sweet potato and cassava production centers. The output target that is expected to be achieved in this PKM activity is that students have the knowledge and skills in producing Jusinta Tape through fermentation technology. The results of the activity are expected to be developed into a learning tool for biotechnology materials. The methods used are: lectures, demonstrations, discussions, practice and mentoring. The instruments used to determine the participants' responses to the Tape Jusinta fermentation technology training were questionnaires, observation, interviews, and documentation. The results achieved were that the participants could easily understand the processing of purple sweet potato and cassava roots into Tape Jusinta through fermentation technology. As many as 60% of the participants from the teacher group answered that the Tape Jusinta fermentation technology was in accordance with the students' abilities and was suitable to be applied in biotechnology learning. The organoleptic test results show that the Tape Jusinta product has a light purple color with an average of 4.4, the aroma of alcohol is less sharp with an average of 4.2, a soft texture with an average of 8.6, a slightly sour taste with an average of 4.4, the taste is quite sweet on average  6.5, and product palatability by the society is well received with an average of 8.9.

scholarly journals Effect of Vine Length and Leaf Removal on Growth and Yield of Sweet Potato [Ipomoea batatas (L.)] in the Wet Middleveld of Eswatini

2021 ◽  
pp. 74-82
Author(s):  
N. Mkhatshwa ◽  
M. P. Mabuza ◽  
N. S. Zubuko
Keyword(s):  
Sweet Potato ◽  
Crop Production ◽  
Ipomoea Batatas ◽  
Agricultural Research ◽  
Block Design ◽  
Growth And Yield ◽  
Leaf Removal ◽  
Sweet Potatoes ◽  
White Variety ◽  
Research Activities

Sweet potato (Ipomoea batatas L.) is an economically important food crop in Eswatini. Since its introduction, numerous agronomic research activities were carried out in agricultural research centers, non-governmental organizations, and universities. However, information on the correct vine length for planting to improve sweet potato root yield in Eswatini is scanty. Therefore, this study aimed at helping farmers with the correct vine length to be used for improved growth and yield of sweet potatoes. A field experiment was conducted at the Luyengo campus, crop production farm during the 2019/2020 crops season. It was laid in a Randomized Complete Block Design (RCBD) in a factorial arrangement with three replicates. The treatments were vines planted with or without leaves and different vine lengths; 25 cm, 30 cm, and 35 cm. Kenya white variety was used. Data were collected on growth and yield parameters. Results showed that leaf removal yielded significantly (P<0.05) lower than non-leaf removal. This may be attributed to delayed photosynthetic activity in the former.  The Vine length had no significant effect on yield. It is concluded that vines with leaves be used as planting material, and the length of vines to be used for planting should be 25 to 30 cm.

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