Pro-vitamin A carotenoids stability and bioaccessibility from elite selection of biofortified cassava roots (Manihot esculenta, Crantz) processed to traditional flours and porridges

2018 ◽  
Vol 9 (9) ◽  
pp. 4822-4835 ◽  
Author(s):  
Ingrid J. Aragón ◽  
Hernán Ceballos ◽  
Dominique Dufour ◽  
Mario G. Ferruzzi

The effects of fermentation and thermal processing on the stability and bioaccessibility of pVAC from elite selections of biofortified cassava roots were assessed to determine the potential for genotype x processing effects.

2019 ◽  
Vol 14 (7) ◽  
pp. 447-460
Author(s):  
Domingos Joao Afonso Sandra ◽  
Alberto da Silva Ledo Carlos ◽  
Franco Cunha Moreira Ricardo ◽  
da Silva Santos Vanderlei ◽  
Peixoto Borges Viviane ◽  
...  

2015 ◽  
Vol 5 (1) ◽  
pp. 1-10
Author(s):  
Eka Herlina ◽  
Farida Nuraeni

Diversifikasi produk pangan merupakan salah satu cara untuk menunjang ketahanan pangan. Ubi kayu (Manihot esculenta Crantz) dapat digunakan sebagai bahan pangan alternatif pengganti beras yang diolah menjadi flakes. Salah satu komponen bioaktif pada ubikayu yaitu skopoletin suatu senyawa fenolik yang mempunyai aktivitas antioksidan. Penelitian ini dilakukan dengan cara mensubstitusi tepung ubi kayu pada pembuatan flakesubi kayu menggunakan tepung kacang merah dengan berbagai perbandingan tepung ubikayu : tepung kacang merah yaitu 5:0, 4:1, 3:2, 2:3 dan 1:4. Produk olahan dianalisiskandungan vitamin C, A, E, tingkat penerimaan dengan uji organoleptik dan uji aktivitasantioksidan dengan metode DPPH (1,1-difenil-2-pikrilhidrazil). Analisis kadar vitamin Cmenggunakan metode spektrofotometri, sedangkan vitamin A dan E dengan metode HPLC.Hasil penelitian menunjukkan flakes ubi kayu dengan penambahan tepung kacang merahpada formula flakes 3:2 merupakan formulasi yang lebih disukai oleh panelis, dengankandungan vitamin C 5,23 ppm, vitamin A 166,05 IU/100 gram, nilai IC50397,06 ppm, dantidak mengandung vitamin E.


2010 ◽  
Vol 7 (1) ◽  
pp. 105-110
Author(s):  
Madalena Madalena ◽  
Heriyanto Heriyanto ◽  
Susanti Pudji Hastuti ◽  
Leenawaty Limantara

Cassava and ceara-rubber leaves are leavy vegetables that can not be consumed in raw form because they contained cyanide, therefore cooking process is needed to remove the cyanide.  However cooking process cause the changes of  the content of pigments and vitamin A. The aims of the research are to know and to compare the effect of heating time to the content of pigments and vitamin A in cassava and ceara-rubber leaves. Content of chlorophyll and carotenoid was analized base of Porra and Lichtenthaler equations, respectively, while pheophytin content was analyzed base on HPLC. The result shown that the content of chlorophylls, carotenoids and vitamin A of cassava and ceara-rubber leaves were reduced, while the content of pheophytin was increased during heating. Pheophytin was the main product degradation of chlorophyll during heating of cassava and ceara-rubber leaves.   Keywords: heating process, cassava, pigment, vitamin A.


Author(s):  
K. O. Ogbedeh ◽  
T. T. Epidi ◽  
S. A. Dialoke ◽  
B. O. Bosah ◽  
C. A. Emenyonu ◽  
...  

The field investigation was conducted in 2015 in four selected Agricultural zones of Owerri, Southeastern Nigeria namely Ezinnihite Mbaise (Zone 1), Owerri North (Zone 2), Mbaitoli (Zone 3) and Owerri West (Zone 4). A random selection of thirty cassava farmers from each of the study areas was made. The sample size was made up of a total of one hundred and twenty (120) respondents. Data were collected through structural questionnaire administration to the respondents on the four selected zones and were analyzed using Descriptive Statistics such as the use of Percentages, Frequencies and Means. Result indicates that majority of the respondents sampled in this study practiced mounding for their cassava production. Also greater proportion of them (respondents) claimed that apart from other known endemic pests like grasshopper, mealybug, green mites etc., termite poses greater threat to their cassava farm. However, highest cassava yield occurred in areas where mounds and/or ridges were practiced. In view of the prevailing high water table of the sampled areas, farmers are advised to continue with the practice of mounding and/or ridging for their cassava production.


2017 ◽  
Vol 2 (6) ◽  
pp. 22
Author(s):  
Nurul Khumaida ◽  
Sintho Wahyuning Ardie ◽  
Mira Sri Astuti

Cassava (Manihot esculenta Crantz., Euphorbiaceae) is an important dietary carbohydrate source for approximately 800 million people in the tropics. It is a potential crop for food, feed, and industry. Cassava breeding through conventional approaches are hampered with some limitations which resulted in a low number of superior varieties. The objective of this research was to generate several mutant lines with higher yield and starch content. This research intended to identify the second generation (M1V2) Jame-jame and Adira-4 variant cassava mutants from gamma ray irradiation. Jame-jame is a local genotype from Halmahera (local high yielding genotype, sweet, and potential)  and Adira-4 is an Indonesia national variety of cassava. Mutant diversity appears on the plant height, plant branching, and plant tubers that harvested at 10 months after planting (MAP). Our results showed the positive correlation between plant height, first branching height, tuber weight, number of roots, and number of economic roots. Based on tuber weight and number of economic tuber there were 9 potential mutants (putative).  Based on the stability test, there were 6 potential stable mutants (putative) by first branching height, tuber weight, total number of tubers, and total number of economies tuber, namely: V5D1-(2), V5D1-2(2), V5D1-3(2), V5D1-4(3), V5D2-2(2), and V5D2-6(2). Keywords: local genotype, M1V2, storage root, characters,  stability.


2015 ◽  
Vol 12 (4) ◽  
pp. 27-38
Author(s):  
Rodolfo Moresco ◽  
Virgílio G. Uarrota ◽  
Aline Pereira ◽  
Maíra Tomazzoli ◽  
Eduardo da C. Nunes ◽  
...  

Summary In this study, the metabolomics characterization focusing on the carotenoid composition of ten cassava (Manihot esculenta) genotypes cultivated in southern Brazil by UV-visible scanning spectrophotometry and reverse phase-high performance liquid chromatography was performed. Cassava roots rich in β-carotene are an important staple food for populations with risk of vitamin A deficiency. Cassava genotypes with high pro-vitamin A activity have been identified as a strategy to reduce the prevalence of deficiency of this vitamin. The data set was used for the construction of a descriptive model by chemometric analysis. The genotypes of yellow-fleshed roots were clustered by the higher concentrations of cis- β-carotene and lutein. Inversely, cream-fleshed roots genotypes were grouped precisely due to their lower concentrations of these pigments, as samples rich in lycopene (redfleshed) differed among the studied genotypes. The analytical approach (UV-Vis, HPLC, and chemometrics) used showed to be efficient for understanding the chemodiversity of cassava genotypes, allowing to classify them according to important features for human health and nutrition.


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