Density and viscosity of cold flour pastes of cassava (Manihot esculenta Grantz), sweet potato (Ipomoea batatas L. Lam) and white yam (Dioscorea rotundata Poir) tubers as affected by concentration and particle size

1998 ◽  
Vol 37 (1) ◽  
pp. 97-101 ◽  
Author(s):  
Chinyere I Iwuoha ◽  
Mercy I Nwakanma
Keyword(s):  
Particle Size ◽  
Sweet Potato ◽  
Manihot Esculenta ◽  
Ipomoea Batatas ◽  
Dioscorea Rotundata ◽  
White Yam

scholarly journals Control of Sprouting of Yam (Dioscorea rotundata) and Sweet Potato (Ipomoea batatas) using African Cardamon (Aframomum danielli), Turmeric (Curcuma longa) and Clove (Syzygium aromaticum)

2017 ◽  
Vol 1 (1) ◽  
pp. 59
Author(s):  
G. O. Adegoke ◽  
A. O. Odebadeu ◽  
M. O. Afolabi
Keyword(s):  
Weight Loss ◽  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Treatment Time ◽  
Curcuma Longa ◽  
Syzygium Aromaticum ◽  
Aqueous Extracts ◽  
Dioscorea Rotundata ◽  
Percentage Weight ◽  
The Difference

This study investigated the effects of the aqueous extracts of Aframomum danielli, Turmeric and Clove in sprouting of yam (Dioscorea rotundata) and sweet potato (Ipomoea batatas). The sliced tubers were dipped into the aqueous extracts of A. danielli, turmeric and Clove, each at concentrations of 5%, 10% and 15%. The tubers were allowed to stand in the solution for 5 and 10 minutes. Distilled water was used in the control samples. The yam slices were air dried after removal from the liquids, placed in paper boxes and incubated at room temperature (28.9 ± 4.0°C) and Relative Humidity of 44.6 ± 18.4 % for a period of six weeks (Bibah, 2014). Weight loss was determined by finding the difference between the initial and final weights and expressed as percentage weight loss. The results indicated that Turmeric treatments at different concentrations of 5%, 10% and 15% were more effective in reducing sprouting index at 5 minutes treatment time with values of 1.79%; 3.00% and 3.02% respectively. Clove treatment at 15%, 10% and 15% A. danielli treatment were more effective in controlling sprouting at 10 minutes treatment time for the yam tubers. There was no clear distinction in the effectiveness of each of aqueous extract of A. danielli, Turmeric and Clove in controlling sprouting at 5 and 10 minutes treatment time for sweet potato tubers.

Intercropping to control weeds in yam (Dioscorea rotundata) and sweet potato (Ipomoea batatas)

1969 ◽  
Vol 75 (1) ◽  
pp. 11-18
Author(s):  
Félix M. Román ◽  
Alberto Beale ◽  
Héber Irizarry
Keyword(s):  
Sweet Potato ◽  
Ipomoea Batatas ◽  
Cropping Systems ◽  
Dioscorea Rotundata ◽  
Weed Population ◽  
Weed Growth ◽  
Tuber Production ◽  
Agricultural Experiment ◽  
Potato Yields ◽  
Made In

Monoculture and intercropping systems for yam (Dioscorea rotundata Poir) and sweet potato (Ipomoea batatas) production in two planting seasons were evaluated at the Corozal Agricultural Experiment Substation. In Experiment 1, yam cv. Guinea Blanco and sweet potato cv. Dominicana were planted the same date; and sweet potato 6 weeks before or after yam in February, April and May. In Experiment 2, the same cropping treatments were evaluated, but plantings were made in October and December 1983 and in January 1984. In this experiment Guinea Negro yam was used. In Experiment 1, sweet potato planted in monoculture or intercropped suppressed weed growth. However, the yam competition significantly reduced sweet potato yields. Although weeds grew freely in monoculture planting, yields were not significantly reduced. In Experiment 2, no significant differences were detected among cropping systems with regard to weed control. However, late plantings (December and January) reduced the weed population in both planting systems. When yam and sweet potato were intercropped during these months, the association did not affect yam production but did reduce sweet potato yields. The yam-sweet potato intercropping planting of December yielded highest for yams with 36,738 k/ha, and the highest combined yam-sweet potato tuber production with 59,014 k/ha. The sweet potato planted as a monoculture in December yielded (36,559 k/ha).

scholarly journals PEMBUATAN NANOPARTIKEL-PERAK EKSTRAK DAUN UBI JALAR ORANGE (Ipomoea batatas L.) DENGAN METODE BIOREDUKSI DAN UJI AKTIVITAS TERHADAP JUMLAH TROMBOSIT Mus musculus

Alotrop ◽  
2019 ◽  
Vol 3 (1) ◽  
Author(s):  
Ririn Trinanda ◽  
Agus Sundaryono ◽  
Dewi Handayani
Keyword(s):  
Particle Size ◽  
Silver Nanoparticles ◽  
Sweet Potato ◽  
Mus Musculus ◽  
Ipomoea Batatas ◽  
Leaf Extract ◽  
Scattering Method ◽  
Potato Leaf ◽  
Agno3 Solution ◽  
Potato Extract

This study aims to make silver nanoparticles (NPP) of orange Sweet potato extract (Ipomoea batatas L.) using bioreduction method and test the effect of giving silver nanoparticles - leaf extract of Ipomoea batatas L. orange (Ipomoea batatas L.) to the number of thrombocyte from male of  Mus musculus induced by aspirin. The precursor used is 1 mM AgNO3 solution and as bioreductor is an antioxidant compound in orange sweet potato extract (Ipomoea batatas L.). The ratio of AgNO3 1 mM solution volume and orange sweet potato leaf extract is 9: 1 with 2 hours time. The characteristic test again obtained NPP is done using FTIR and Particle Size Analyzer (PSA) using Dynamyc Light Scattering method (DLS). The results showed that from the PSA analysis is known the average size of NPP – I. Batatas, L leaf extract  is an average of 86.0 nm with a polydispersity value (PDI) of 0.17 < 1 that indicates that the  NPP-leaf extract particle size distribution It is less homogeneous and are less stable.The results show that the administration of silver nanoparticles - orange sweet potato extract (Ipomoea batatas L.) can increase the platelet count of male mice significantly Dose of 0.014 g / Kgbb of 259,600 / mm3. 

scholarly journals Screening of Phytochemical, Antioxidant and Fiber Levels of Sweet Potato (Ipomoea batatas), Cassava (Manihot esculenta), and Binahong (Anredera cordifolia (Ten) Steenis) Leaves Extract

2020 ◽  
Vol 11 (3) ◽  
pp. 4779-4783
Author(s):  
Nurdin Rahman ◽  
Fendi Pradana ◽  
St. Ika Fitrasyah ◽  
Diah Ayu Hartini ◽  
Ariani ◽  
...  
Keyword(s):  
Antioxidant Activity ◽  
Free Radicals ◽  
Sweet Potato ◽  
Experimental Research ◽  
Manihot Esculenta ◽  
Ipomoea Batatas ◽  
Sweet Potatoes ◽  
Cassava Leaves ◽  
Average Fibre ◽  
Sweet Potato Leaves

Generally, vegetables contain various vitamins, minerals, and pigments that have antioxidant activity and can neutralise free radicals before causing damage to body cells. The research aimed to analyse phytochemical, antioxidant contents, and fibre levels of leaves extract of sweet potato, cassava, and binahong. The study was experimental research utilising leaves of sweet potato, cassava, and binahong. The leaves were removed and analysed for contents of phytochemicals, antioxidant and fibre levels. Flavonoid compounds were obtained positively on the 5-blades leaves extract of Cassavas. Polyphenol and tannin were undoubtedly discovered on the single, and 3-blades leaves extract of Sweet Potatoes and also on the five, and 7-blades leaves extract of Cassavas. Interestingly, alkaloids and steroids were identified on leaves extract of binahong, the single and 3-blades leaves extract of Sweet Potatoes and also on the five and 7-blades leaves extract of Cassavas. Consequently, 7-blades leaves extract of Cassavas contains the highest level of antioxidants (IC50), which was 44.46% (90 ppm). Nonetheless, 3-blades leaves extract of Sweet Potatoes contains the lowest. The leaves extract of binahong had an average fibre content of 28.45%, followed by 5-blades cassava leaves at 26.59%, and cassava leaves at 25%. The extract of sweet potato leaves was able to be developed as a source of antioxidants. Moreover, it contained high fibres.

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