scholarly journals Penurunan Kadar Total Oksalat Tepung Talas dan Tepung Belitung asal Bogor, Indonesia Menggunakan Dua Metode Perendaman

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

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.

RAPID IN VITRO PROPAGATION OF WESTERN GHATS CULTIVAR - COLOCASIA ESCULENTA FOR THE HIGH FREQUENCY OF PLANTLETS

2019 ◽  
Vol 7 (2) ◽  
Author(s):  
Jyothi R ◽  
Srinivasa Murthy K M ◽  
Hossein . ◽  
Veena .
Keyword(s):  
Tissue Culture ◽  
Wide Distribution ◽  
Colocasia Esculenta ◽  
Limiting Factor ◽  
Promising Alternative ◽  
Rapid Multiplication ◽  
Medical Plant ◽  
Total Fat ◽  
Planting Materials

Colocasia esculenta is commonly known as Taro, it is referred to as cocoyam in Nigeria. They are cherished for their rich taste, nutritional and medicinal properties. Every 100 g of taro corms possess 112 Kcal, 26.46 g carbohydrate, 1.50 g protein, 0.20 g total fat and 4.1g fiber (USDA National Nutrient Data Base). Besides its nutritional value, taro is used as a medical plant and provides bioactive compounds used as an anti-cancer drugs. Traditionally, cocoyams are vegetative propagated from tuber fragments, a practice that encourages pathogen distribution. Colocasia esculenta is a widely distributed food crop in the humid tropics and subtropics. Despite of its wide distribution, Taro plants are commonly infected with DsMV and other pathogens. This virus induces conspicuous mosaic, malformation, dwarfing or feathering on leaves in taro. As the results of infection, it reduces the quality and yield of taro production greatly. This virus is thus considered as a major limiting factor in the production of taro. Here plays the importance of  tissue culture plays a major role in producing the disease resistant plants round the year with high quality. For rapid multiplication and production of quality planting materials, tissue culture technology offers promising alternative compared to the traditional production methods. KEYWORDS: Colocasia esculenta, Virus, Pathogens, Conventional propagation, Micropropagation, Yield, Rapid multiplication, Quality

Studi Penggunaan Talas (Colocasia esculenta) dalam Ransum terhadap Produksi Telur Itik Talang Benih

2009 ◽  
Vol 4 (2) ◽  
pp. 72-77
Author(s):  
Kususiyah Kususiah ◽  
Urip Santoso ◽  
Rian Etrias
Keyword(s):  
Colocasia Esculenta

DESEMPENHO DE CULTIVARES DE TARO (Colocasia esculenta) NO OUTONO/INVERNO EM REGIÃO DE CLIMA QUENTE

2018 ◽  
Vol 30 (1) ◽  
pp. 65-72
Author(s):  
Marcelo Krause ◽  
João Colombo ◽  
Letícia Altoé ◽  
Marcelino Ianke ◽  
Antonio Fernando Souza
Keyword(s):  
Colocasia Esculenta

scholarly journals An Extract of Taro (Colocasia esculenta) Mediates Potent Inhibitory Actions on Metastatic and Cancer Stem Cells by Tumor Cell-Autonomous and Immune-Dependent Mechanisms

2021 ◽  
Vol 15 ◽  
pp. 117822342110349
Author(s):  
Namita Kundu ◽  
Xinrong Ma ◽  
Stephen Hoag ◽  
Fang Wang ◽  
Ahmed Ibrahim ◽  
...  
Keyword(s):  
Breast Cancer ◽  
Stem Cells ◽  
Cancer Stem Cells ◽  
Tumor Cell ◽  
Cell Lines ◽  
Nk Cell ◽  
Cancer Therapeutics ◽  
Colocasia Esculenta ◽  
Biologically Active ◽  
Tumor Cell Migration

The taro plant, Colocasia esculenta, contains bioactive proteins with potential as cancer therapeutics. Several groups have reported anti-cancer activity in vitro and in vivo of taro-derived extracts (TEs). We reported that TE inhibits metastasis in a syngeneic murine model of Triple-Negative Breast Cancer (TNBC). Purpose: We sought to confirm our earlier studies in additional models and to identify novel mechanisms by which efficacy is achieved. Methods: We employed a panel of murine and human breast and ovarian cancer cell lines to determine the effect of TE on tumor cell viability, migration, and the ability to support cancer stem cells. Two syngeneic models of TNBC were employed to confirm our earlier report that TE potently inhibits metastasis. Cancer stem cell assays were employed to determine the ability of TE to inhibit tumorsphere-forming ability and to inhibit aldehyde dehydrogenase activity. To determine if host immunity contributes to the mechanism of metastasis inhibition, efficacy was assessed in immune-compromised mice. Results: We demonstrate that viability of some, but not all cell lines is inhibited by TE. Likewise, tumor cell migration is inhibited by TE. Using 2 immune competent, syngeneic models of TNBC, we confirm our earlier findings that tumor metastasis is potently inhibited by TE. We also demonstrate, for the first time, that TE directly inhibits breast cancer stem cells. Administration of TE to mice elicits expansion of several spleen cell populations but it was not known if host immune cells contribute to the mechanism by which TE inhibits tumor cell dissemination. In novel findings, we now show that the ability of TE to inhibit metastasis relies on immune T-cell-dependent, but not B cell or Natural Killer (NK)-cell-dependent mechanisms. Thus, both tumor cell-autonomous and host immune factors contribute to the mechanisms underlying TE efficacy. Our long-term goal is to evaluate TE efficacy in clinical trials. Most of our past studies as well as many of the results reported in this report were carried out using an isolation protocol described earlier (TE). In preparation for a near future clinical trial, we have now developed a strategy to isolate an enriched taro fraction, TE-method 2, (TE-M2) as well as a more purified subfraction (TE-M2F1) which can be scaled up under Good Manufacturing Practice (GMP) conditions for evaluation in human subjects. We demonstrate that TE-M2 and TE-M2F1 retain the anti-metastatic properties of TE. Conclusions: These studies provide further support for the continued examination of biologically active components of Colocasia esculenta as potential new therapeutic entities and identify a method to isolate sufficient quantities under GMP conditions to conduct early phase clinical studies.

scholarly journals Variation in mineral element composition of landrace taro (Colocasia esculenta) corms grown under dryland farming system in South Africa

Heliyon ◽  
2021 ◽  
Vol 7 (4) ◽  
pp. e06727
Author(s):  
Abe Shegro Gerrano ◽  
Isack Mathew ◽  
Admire IT. Shayanowako ◽  
Stephen Amoo ◽  
John Jason Mellem ◽  
...  
Keyword(s):  
South Africa ◽  
Farming System ◽  
Colocasia Esculenta ◽  
Element Composition ◽  
Mineral Element ◽  
Dryland Farming

scholarly journals Effects of Reduced Nitrogen Fertilization and Irrigation on Structure and Physicochemical Properties of Starch in Two Bread Wheat Cultivars

Agriculture ◽  
2021 ◽  
Vol 11 (1) ◽  
pp. 26
Author(s):  
Jingyang Tong ◽  
Shujun Wang ◽  
Zhonghu He ◽  
Yan Zhang
Keyword(s):  
Physicochemical Properties ◽  
Bread Wheat ◽  
Short Range ◽  
N Fertilization ◽  
Wheat Starch ◽  
Transition Temperatures ◽  
Starch Granules ◽  
Relative Crystallinity ◽  
Swelling Power ◽  
Use Efficiency

Nitrogen (N) fertilization and irrigation are significant agronomic factors affecting wheat production, but little information is available on the effects of reduced N fertilization and irrigation on internal starch structure and physicochemical properties associated with the quality of wheat-based foods. In this study, reduced N fertilization and irrigation were separately applied to investigate their effects on composition and morphological changes, crystalline and external region structure features, swelling power, and gelatinization characteristics of starch granules in bread wheat, with a high N-use-efficiency and water-saving wheat cultivar Zhongmai 175 and a widely grown cultivar Jingdong 17. Compared with a non-N control, reduced N fertilization did not change the crystallinity type and short-range ordered degree of starch; however, it significantly increased relative crystallinity, swelling power and gelatinization enthalpy, whereas amylose content and transition temperatures were decreased. Under reduced irrigation, more small starch granules with compact arrangements appeared in comparison with non-water control. Relative crystallinity, swelling power and gelatinization enthalpy of starch were increased, whereas short-range ordered degree and transition temperatures were decreased. Moreover, the starch of the two cultivars appeared to differ in response to both the N and water treatments. The findings indicated that reduced N fertilization or irrigation markedly influenced the structure and physicochemical characteristics of wheat starch, providing important information for developing elite cultivars with high N and water use efficiency and outstanding starch quality.

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