scholarly journals POTENSI UBI JALAR PUTIH (Ipomoea batatas linneaus varietas) SEBAGAI MEDIA ALTERNATIF PERTUMBUHAN BAKTERI Staphylococcus aureus

2021 ◽  
Vol 10 (1) ◽  
pp. 23-26
Author(s):  
Siti Juariah

Bacterial growth is highly dependent on nutrient sources, energy sources and environmental conditions. Nutrien agar is a medium that is often used for bacterial growth. The use of Nutrien agar requires a high cost, so it is considered to have no economic value. The use of alternative media is cheap, easy to obtain, and has a large source of nutrients for the growth of the required bacteria. White sweet potato (Ipomoea batatas linneaus variety) has a high carbohydrate content to be used as a carbon source for bacterial growth. The purpose of this study was to reveal the potential of white sweet potato (Ipomoea batatas linneaus variety) as an alternative medium for the growth of Staphylococcus aureus bacteria. This research uses experimental laboratory methods. Staphylococcus aureus growth was observed, and total plate number was calculated on nutrien agar and white sweet potato (Ipomoea batatas linneaus varieties) media. Based on the research results, Nutrien agar is small in size, from 0.1 cm to a yellow colour and round shape. In comparison, the white sweet potato (Ipomoea batatas linneaus variety) has a small size of 0.1 cm, milky white with a round shape. The results of the calculation of the otal plate number from the Nutrien agar medium was 1.6 X (104) CFU. In comparison, the total plate number from the white sweet potato (Ipomoea batatas linneaus variety) medium was 8.9 X (104) CFU. From the results of this study, it can be concluded that white sweet potato (Ipomoea batatas linneaus variety) can be used as an alternative medium for the growth of Staphylococcus aureus bacteria.

2018 ◽  
Vol 6 (2) ◽  
pp. 165-170
Author(s):  
Rahmat Fadhil ◽  
Diswandi Nurba

AbstractProcessing of purple sweet potato (Ipomea batatas L.) into chips is a means to improve the economic value. Crispiness is considered as one essential quality parameter for chip products that must be pursued. The thickness of slices and concentration of sodium bicarbonate (NaHCO3) constitute crispiness defining factors. This research was aimed at conducting organoleptic evaluation on a variety of purple sweet potato slice thicknesses and post-frying sodium bicarbonate concentrations using Non-Numeric Multi Person-Multi Criteria Decision Making (MP-MCDM). Research results showed that the Non-Numeric MP-MCDM method had successfully determined decision of the best prioritized decision among different alternative treatments of the ingredient. The preferred decision according to respondent opinions on the basis of organoleptic evaluation including color, aroma, taste, texture and overall acceptance were products from the 3 g/L NaHCO3 concentration with 1 mm (KB) slice thickness and the 3 g/L NaHCO3 concentration with 2 mm (KE) slice thickness and respondents seemed to like (SK) those products.AbstrakPengolahan ubi jalar ungu (Ipomoea batatas L.) menjadi keripik merupakan salah satu cara untuk meningkatkan nilai ekonomi. Kerenyahan adalah salah satu parameter mutu penting bagi produk keripik yang harus diupayakan. Ketebalan irisan dan konsentrasi natrium bikarbonat (NaHCO3) merupakan faktor penentu kerenyahan. Penelitian ini bertujuan untuk melakukan penilaian organoleptik berbagai variasi ketebalan irisan ubi jalar ungu dan kosentrasi natrium bikarbonat pasca penggorengan dengan metode Non-Numeric Multi Person-Multi Criteria Decision Making (MP-MCDM). Hasil penelitian menunjukkan bahwa metode Non-Numeric MP-MCDM telah berhasil menentukan keputusan prioritas terbaik dari berbagai alternatif perlakuan bahan. Keputusan terbaik menurut pendapat responden berdasarkan uji organoleptik yang meliputi warna, aroma, rasa, tekstur dan penerimaan keseluruhan adalah konsentrasi NaHCO3 sebanyak 3 g/L pada ketebalan irisan 1 mm (KB) dan konsentrasi NaHCO3 sebanyak 3 g/L pada ketebalan irisan 2 mm (KE) dengan keputusan suka (SK).


2017 ◽  
Vol 4 (1) ◽  
pp. 5
Author(s):  
Shinta Nurdika Meilani ◽  
Septarini Dian Anitasari ◽  
Fatimatuz Zuhro

<p align="center"> </p><p><em>Orchids (Chattleya sp) is popular plant which is favorted by peoples and has higt economic value. It’s price Rp. 562,000 / plant. Tissue culture technique is needed to produce this flower quicky than conventional technique. This study have aims to determine the effect of some medium concentration of organic sweet potato (Ipomoea batatas L) on growing Cattleya sp and for knowing the best of concentration on the growth of  Chattleya sp. </em><em>The method used was Completely Random Design (RAL) with four of factors, that is: 0 g / L, 75 g / L, 150 g / L, and 300 g / L. The results were analyzed with Anova test and Duncan test multiple ranger test at the level of 5%. Each treatment was repeated six times. Parameters were observed are the number of new shoots, long leaf, number of leaves, leaf width, long roots, and height of the plant for 5 weeks. Based on the results of analysis showed that the sweet potato extract on 150 g / L concentration give the best results in long root parameter, the concentration of 75 g / L gived the best results to long leaf parameter and concentration of 300 g / L gived the best effect against leaf width. Same concentrations of sweet potato did not give significantly effect to number of new shoots, plantlets height, and number of leaves. </em></p>


Author(s):  
Kinga Kostrakiewicz-Gierałt

The sweet potato (Ipomoea batatas L. Lamarck syn. Convolvulus batatas L.) is a perennial, herbaceous climber with tuberous edible roots, and is a major leguminous crop of global importance with widespread applicability and economic value of its products in the global market. The aim of the presented investigations was to review the experimental articles and patents referring to the application of sweet potato-based nutritional products for athletes published in the period 2000–2020. Altogether, 69 patents and 12 experimental articles were included in the analysis. The statistical analysis showed that similar number of inventions was patented in periods 2000–2005, 2006–2010, 2011–2015 and 2016–2020. Generally, the inventors patented food supplements in different forms (e.g. bars, beverages, powders, snacks, tablets). Other authors invented methods of extraction and application of sweet potato constituents such as carbohydrates (i.a. slowly digestible starch) and polyphenols (i.a. anthocyanins). The empirical articles evidenced wide acceptability of sweet potato products due to their beneficial effects on health and performance such as improvement of cardiopulmonatory functions, prolongation of physical performance and recovery from fatigue. Despite growing interest in the application of sweet potato constituents in nutritional products for athletes, further investigations are highly desirable.


2021 ◽  
Vol 6 (2) ◽  
pp. 69-73
Author(s):  
Damaranie Dipahayu ◽  
Kinanti Ayu Puji Lestari

Ethanol extract of purple sweet potato (Ipomoea batatas (L.)) leaves of Antin-3 variety contains flavonoids and polyphenols which can be used as a source of acne anti-bacterial because it can inhibit the growth of Staphylococcus aureus. This study aims to obtain data on physical characteristics, acceptability and stability of anti-acne mask formulation of 70% ethanol extract of Antin-3 leaves. The research method used were characteristic, acceptability and stability test. There were 4 types of samples tested, namely base, Antin-3 extract 5%: 10% and 20% (B: F1: F2: F3). The organoleptic results showed that the higher concentration of  extract, the darker color of mask and the stronger of extract smell and the softer of consistency. The pH values ​​(B: F1:F2: F3) were respectively 6.46; 5.78; 5.75; 5.46. The value of adhesion (B: F1: F2: F3) were respectively 1.1; 1.46; 2.17 and 4.53 seconds. The value of spreading capacity (B: F1: F2: F3) were respectively 3.89; 4.15; 4.36 and 3.45 cm. The results of the acceptability test showed that F2 was the easiest formula to spread, clean and  softest sensation on the skin. The results of the mechanical  and cycling test showed that the four samples had not undergo phase separation. Anti-acne mask with 70% ethanol extract of Antin-3 leaves by 10% met the physical characteristics, acceptability and stability.


2017 ◽  
Vol 2 (6) ◽  
pp. 680
Author(s):  
Mohamad Djali ◽  
Maulisa Firbiani ◽  
Marsetio Marsetio

Indonesia is the fourth largest sweet potato producing country in the world. However, the number of sweet potato utilization is still non optimal. One of the most popular sweet potato cultivars is Cilembu sweet potato. Velva is a frozen dessert which is made from mashed fruit (puree) with addition of water and sucrose. Fat content in velva is much lower than the ice cream, it is suitable to be consumed by vegetarian and those who are on low-fat diet. The velva making process may serve as an alternative of sweet potato utilization and will increase its economic value. One of the factors that affects the texture of velva is the type and amount of stabilizers used. This research aims to determine the optimal amount of Carboxy Methyl Cellulose(CMC) to yield Cilembu sweet potato velva with good characteristics and organoleptic properties of the panelists preferences. The method used is the experimental method with completely randomized design (CRD) consisted of 6 treatments of CMC addition (0.00%, 0.20%, 0.40%, 0.60%, 0.80%, and 1.00%) and replicated 4 times. The final results showed that the sweet potato velva with addition of 0.60% CMC was the best treatment. The velva has rate of melting 712.50 seconds, overrun 19.69 %, and the amount of total soluble solids 27obrix. This velva has qualified the standard of rate of melting, according to Arbuckle and Marshall (1996) the ice cream’s rate of melting  in 20oC  is 10-15 minutes. Keywords: velva; sweet potato; CMC; characteristics


2020 ◽  
Vol 20 (3) ◽  
Author(s):  
Sang Sanggita Surya ◽  
Farida Juliantina Rachmawaty

Abstrak. Lalat merupakan serangga yang dapat membawa berbagai bakteri, salah satunya Staphylococcus aureus. Bakteri tersebut dapat menyebabkan penyakit pada manusia. Hadits Nabi Muhammad s.a.w disebutkan bahwa lalat memiliki penyakit pada satu sisi sayapnya dan penawar pada sisi sayap yang lain. Hasil penelitian ini diharapkan dapat mengetahui gambaran hadits tersebut dan peran metabolit sekunder lalat rumah terhadap pertumbuhan Staphylococcus aureus. Penelitian ini bertujuan untuk mengetahui aktivitas antibakteri metabolit sekunder lalat rumah terhadap Staphylococcus aureus serta mengetahui konsentrasi bakteri yang dapat dihambat oleh metabolit sekunder tersebut. Metode penelitian yang digunakan adalah eksperimental laboratorium dengan menguji aktivitas antibakteri metabolit sekunder lalat rumah yang diambil pada menit ke-20 terhadap Staphylococcus aureus yang terbagi menjadi 6 konsentrasi yaitu 101 CFU/ml hingga 106 CFU/ml. Hasil dianalisis secara deskriptif dengan membandingkan pertumbuhan bakteri pada uji metabolit sekunder dengan kontrol. Hasil pengujian didapatkan terdapat hambatan pertumbuhan Staphylococcus aureus pada uji metabolit sekunder lalat rumah dibandingkan dengan kontrol. Konsentrasi yang dapat dihambat sepenuhnya adalah 101 CFU/ml, sedangkan konsentrasi 102 CFU/ml hingga 106 CFU/ml dihambat sebagian. Namun hasil yang diperoleh belum konsisten. Metabolit sekunder lalat rumah memiliki aktivitas antibakteri terhadap Staphylococcus aureus yaitu ditunjukkan oleh hambatan pertumbuhan bakteri pada semua konsentrasi yang diuji Kata Kunci: Aktivitas Antibakteri, Metabolit           Sekunder, Musca   domestica, Staphylococcus aureus Abstract. Flies are insects carry a variety of bacteria, one of it is Staphylococcus aureus. This bacterium cause disease in humans. However, in the hadith of the Prophet Muhammad s.a.w, mentioned that a fly carries a disease on one side of its wings and an antidote on the other side. Therefore, the results of this study are expected to be able to explain the relation with the meaning of the hadith of the Prophet Muhammad s.a.w. and to show the role of secondary metabolites of houseflies on the growth of Staphylococcus aureus. This research is to determine the antibacterial activities of the housefly’s secondary metabolites towards Staphylococcus aureus and the concentration of bacteria that can be inhibited by these secondary metabolites. This research use experimental laboratory which tested the antibacterial activities of the housefly’s secondary metabolites taken in the 20th minute towards Staphylococcus aureus, was divided into six concentrations of 101 CFU/ml to 106 CFU/ml compared with controls. The results were analyzed descriptively by comparing bacterial growth in secondary metabolites test with bacterial growth in control. This research found there is Staphylococcus aureus growth inhibition in the test given secondary metabolites of house flies compared with controls. Concentrations of bacteria that can be inhibited entirely are 101 CFU/ml, while those that can be partially inhibited are at concentrations of 102 CFU/ml to 106 CFU/ml. But the results obtained have not consistent. Secondary metabolites of house flies have antibacterial activity towards Staphylococcus aureus. This is indicated by the inhibition of bacterial growth at all concentrations tested.Keywords: Antibacterial activity, secondary metabolites, Musca domestica, Staphylococcus aureus


Planta Medica ◽  
2012 ◽  
Vol 78 (11) ◽  
Author(s):  
D Rosas-Ramírez ◽  
R Pereda-Miranda
Keyword(s):  

2019 ◽  
Vol 9 (02) ◽  
Author(s):  
Hussein A Kadhum ◽  
Thualfakar H Hasan2

The study involved the selection of two isolates from Bacillus subtilis to investigate their inhibitory activity against some bacterial pathogens. B sub-bacteria were found to have a broad spectrum against test bacteria such as Staphylococcus aureus and Pseudomonas aeruginosa. They were about 23-30 mm and less against Klebsiella sp. The sensitivity of some antibodies was tested on the test samples. The results showed that the inhibitory ability of bacterial growth in the test samples using B. subtilis extract was more effective than the antibiotics used.


2018 ◽  
Vol 15 (2) ◽  
pp. 146
Author(s):  
BRILIAN DINANTI ◽  
FITRI HANDAJANI

<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


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