colocasia esculenta
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2021 ◽  
Vol 5 (4) ◽  
pp. 359-364
Author(s):  
Erni Rustiani ◽  
Aulia Fitriani ◽  
Sri Wardatun

Colocasia esculenta L. (Schoot) is a widely used plant in developing countries in Asia, Africa, and Central America. The parts of the Colocasia plant that can be used are the tubers, stalks, and leaves. There has not been much research on the content of this plant. The study aims to determine the flavonoids and terpenoids in the ethanol extract of Colocasia stalk and leaves. The maceration method with 70% ethanol solvent and drying with vacuum evaporator. Determination of flavonoid levels based on quercetin marker compounds using AlCl3 reagent by UV-Vis spectrophotometry. The terpenoid levels were carried out gravimetrically with petroleum ether as a solvent. The results showed that the ethanol extract of Colocasia stalk and leaf contained flavonoids, respectively 3.18 +0.0581% and 4.33 +0.0285%, while the results of the terpenoid levels for stalks were 7.10 +0.0676% and leaves were 8.39 +0.0023%.


Author(s):  
Hidayat Bambang Setyawan ◽  
Roni Yulianto ◽  
Oviaki Zelin ◽  
Listya Purnamasari

The growth and yield of taro (Colocasia esculenta L.) plants are influenced by the planting material. The use of planting material derived from corms is expected to improve the quality and quantity of taro growth and yield. This research aimed to find the best type of planting material and cultivars for taro growth and the potential of taro plants as animal feed. The experiment was carried out in Jember, East Java ( elevation ±89 m asl). The experiment used the randomized completed block design method with two treatment factors, the type of planting material (B) as the first factor (B1: taro corms, B2: taro tiller, B3: taro stolon) and the use of taro cultivars (V) as the second factor (V1: green taro, V2: ketan taro, V3: Sukabumi taro). The treatment was repeated four times. The results showed that there was an interaction between the use of taro planting material and taro cultivar that could influence the tuber weight per plant. The types of planting material had a significant effect on the number of tillers, leaf area, corm weight and diameter, and the planting of several taro cultivars significantly affected all observed variables. The treatment that gave the best results was planting material from taro tuber (B1) and Sukabumi cultivar (V3) with a tuber weight yield of 362.58 g (±14.5 tons/ha). Meanwhile, the Sukabumi cultivar (V3) had the best potential as animal feed. Overall, the stems and leaves of taro had a protein content of 1.19–2.02%, while the corms had 2.82–4.09%.


WARTA AKAB ◽  
2021 ◽  
Vol 45 (2) ◽  
Author(s):  
Dhina Aprilia Nurani widyahapsari ◽  
Hanafi - ◽  
Sri Redjeki Setyawati ◽  
Shinta Damerys Sirait ◽  
Eva Yuliana

Umbi talas (Colocasia esculenta) dan umbi belitung (Xantosoma sigittifolium) memiliki kandungan kristal oksalat. Kristal oksalat dapat menimbulkan sensasi rasa gatal saat dikonsumsi. Penurunan kadar kristal oksalat diharapkan mampu mengurangi rasa gatal yang timbulkan. Umbi talas dan umbi belitung direndam dengan 2 metode, pertama dalam air panas (90oC) dan kedua dalam larutan NaCl (10% b/v) selama 1 jam. Setelah perendaman, dilakukan pengeringan oven suhu 60oC selama 4 jam dan 5 jam kemudian dihaluskan untuk menghasilkan tepung talas dan tepung belitung. Tepung yang dihasilkan dianalisis kadar total oksalat, kadar amilosa serta sifat fisik berupa daya kembang dan daya serap tepung. Kedua perlakuan perendaman dalam air panas suhu 90oC dan larutan NaCl 10% dapat menurunkan kadar total oksalat dan kadar amilosa serta meningkatkan swelling power dan kelarutan pada tepung talas dan tepung belitung. Sedangkan kemampuan daya serap air dan minyak tepung talas dan tepung belitung tidak dipengaruhi secara signifikan. Penurunan kadar oksalat akibat perendaman dalam larutan NaCl 10% lebih efektif dibandingkan perendaman dalam air panas 90oC. Lama waktu pengeringan pada suhu 60oC juga menunjukan pengaruh yang signifikan terhadap penurunan kadar total oksalat, tepung talas maupun tepung belitung yang dikeringkan selama 5 jam mengalami penurunan kadar oksalat lebih besar dibandingkan pengeringan selama 4 jam.


2021 ◽  
pp. 101-112
Author(s):  
C. J. Mba ◽  
H. O. Agu

Two varieties of Cocoyam Colocasia esculenta (L) Schott (Taro) and Xanthosoma sagittifolium (L) Schott (Tannia) are experiencing renewed interest not only in Africa but also in the rest of the world. They are considered to be cheaper sources of carbohydrates than cereals or other bulbous crops because of their high calorie yield per hectare, low production costs, and relatively low susceptibility to insect and pest infestation. In addition to their nutritional benefits, they contain bioactive compounds such as polyphenols, proteins, mucilage, polysaccharides, lipids and anti-polyphenol antioxidants. These bioactive compounds have been shown to provide consumers with health benefits such as anti-cancer, anti-inflammatory, antioxidant and dyslipemic properties. Interestingly, you don't need to consume the raw tubers or leaves to get these numerous health benefits, as the different parts of the plants which are nutrient-dense, have been used in various food applications such as flour, chips, poi, syrup, weaning foods for babies, local delicacies, and starch production. These products compete favourably with products from other root and tuber crops. Therefore, this article describes various value-added products made from Cocoyam that can be consumed to reap the numerous health benefits associated with consuming Cocoyam.


2021 ◽  
Vol 33 (3) ◽  
pp. 199
Author(s):  
Endang Sjamsudin ◽  
Annisya Muharty ◽  
Lucky Riawan ◽  
Bambang Pontjo Priosoeryanto

Introduction: taro leaves (Colocasia esculenta (L.) Schott) have been reported to possess wound healing, anti-inflammatory, antibacterial and antioxidant activities. One of the factors that affect wound healing is infection in the wound, wherein the wound is infected by  bacteria, especially Staphylococcus aureus that is mostly found in the oral cavity, the wound healing process will be hampered and become longer healed.The objective of this research was to analyze the efficacy of Colocasia esculenta (L.) Schott extract on the healing process of wounds contaminated with Staphylococcus aureus. Methods: This experimental study on Sprague dawley rats was carried out at the Teaching Veterinary Hospital, IPB . Twenty-four Sprague dawley rats were made with circular excision wounds with a diameter of 2 cm on the dorsum, and Staphylococcus aureus specimens were contaminated with a dose of 3.4x108 LAC. Rats were randomly divided into 2 groups. Group I was given a placebo, group II was given a 25% concentration of Colocasia esculenta (L.) Schott extract on the wound once a day. Four rats from each group were euthanized on days 3, 7, and 14. The number of neutrophils, macrophages, re-epithelialization and FGF-2 expression were measured by microscopic observation with visual field control, and comparative data were analyzed using the Mann-Whitney statistical test. Results: The number of neutrophils on day 7 of the Colocasia esculenta (L.) Schott leaf extract group was less than the control group (p=0.040). The number of macrophages on the 3rd day was more in the treatment group than the control group (p=0.032), and on the 14th day, the treatment group was less than the control group (p=0.040). Epithelial cells on the 14th day of the treatment group were more than the control group (p=.0.017). The level of FGF-2 expression on day 7 of the treatment group was higher than the control group (p=0.044). Conclusion: Application of extracts  Colocasia esculenta (L.) Schott leaf is proven to be efficacious on day 7 for wound healing contaminated with Staphylococcus aureus bacteria.


2021 ◽  
Vol 69 (4) ◽  
pp. 331-338
Author(s):  
João Nacir Colombo ◽  
Mario Puiatti ◽  
Ricardo Henrique Silva Santos ◽  
Luiz Antônio dos Santos Dias ◽  
Henrique Colli Silvestre

Aiming to assess the residual effect of the biomass of the taro-sunn hemp consortium on the performance of the successive crops of broccoli, green corn and peas, an experiment, with 11 treatments, corresponding to the cutting of Crotalaria juncea in the taro-sunn hemp consortium (55, 70, 85, 100, 115, 130, 145, 160, 190 and 220 days after sowing - DAS) plus a control treatment (Colocasia esculenta), was performed. Soil samples were collected and chemical analysis was performed before crop establishment. Plant characteristics and productivity of broccoli, green corn and pea pods were assessed. There were no major changes in soil chemical composition. Higher values of inflorescence fresh matter and broccoli yield were observed in the treatments in which cuts of Crotalaria juncea occurred 145 DAS. The residual effect of Crotalaria juncea cuttings provided higher corn plants and a greater fresh matter of spikes with straw and productivity of commercial ears, compared to the control. There was no residual effect on the characteristics evaluated for pea. The residual effect of Crotalaria juncea cropped in a consortium with Colocasia esculenta increases broccoli yield when cut from 145 DAS and corn cropped in succession.


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