2004
DOI: 10.1007/s11103-004-4873-9
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Abstract: This study reports the identification of a new class of cassava (Manihot esculenta Crantz) with a storage root showing unusual free sugar accumulation and novel starch. Twenty-seven clones high in free sugar were identified under cultivation in primitive rural community areas in the Amazon. Iodine test and glucose oxidase-peroxidase reagent strips were used, in the field, for identification of starch and glucose, respectively. Five out of these 27 clones of cassava were cultivated at EMBRAPA Genetic Resources … Show more

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Cited by 49 publications
(39 citation statements)
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References 26 publications
(24 reference statements)
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“…However, the three landraces had high levels of reducing sugars (≥3.71g 100g -1 of root) and total sugars (≥3.92g 100g -1 of root) when compared to those found in conventional cassavas (≤0.48 and ≤0.83g 100g -1 of root, respectively) (HILLOCKS et al, 2002). The reducing sugars, consisting mainly of glucose, represent the largest part of the total sugars in the three sugary cassava landraces (≥80%), however according to CARVALHO et al (2004), on sugary cassava exist other sugars that were not quantifi ed in this research, such as galactose, arabinose and rhamnose. This may explain the difference between the sugars determined by chromatography (glucose, fructose and sucrose) and sugars determined by titration (total and reducing sugars).…”
Section: Root Compositionmentioning
confidence: 82%
See 1 more Smart Citation
“…However, the three landraces had high levels of reducing sugars (≥3.71g 100g -1 of root) and total sugars (≥3.92g 100g -1 of root) when compared to those found in conventional cassavas (≤0.48 and ≤0.83g 100g -1 of root, respectively) (HILLOCKS et al, 2002). The reducing sugars, consisting mainly of glucose, represent the largest part of the total sugars in the three sugary cassava landraces (≥80%), however according to CARVALHO et al (2004), on sugary cassava exist other sugars that were not quantifi ed in this research, such as galactose, arabinose and rhamnose. This may explain the difference between the sugars determined by chromatography (glucose, fructose and sucrose) and sugars determined by titration (total and reducing sugars).…”
Section: Root Compositionmentioning
confidence: 82%
“…Within this context, a group of landraces indigenous to the Brazilian Amazon, widely-known as sugary cassava or "mandiocaba", stand out from the other varieties of cassava in terms of their high sugar and low starch content, used by the indigenous people of the Amazonia to make a sweet porridge known as "manicueira" (CARVALHO et al, 2004). The production of a concentrate rich in glucose, by concentrating "manipueira" (liquid obtained by crushing and fi ltering of cassava), is one of the possible industrial uses of sugary cassava (CARDOSO et al, 2004).…”
Section: Introductionmentioning
confidence: 99%
“…Diversity in central cylinder of CSR ( Figure 2) for carotenoids ( Figure 2A), and carbohydrate and starch iodine staining pattern ( Figure 2B) indicate a large genetic [1] and are the most popular traits used for genetic breeding proposes [2][3][4].…”
Section: Storage Root Of Cassava Diversitymentioning
confidence: 99%
“…Atualmente, vêm recebendo amplo destaque entre pesquisadores e produtores de mandioca do Brasil e do mundo, acessos de mandioca popularmente conhecidos como mandiocas açucaradas ou mandiocabas, que armazenam açúcares livres em suas raízes de reserva e não somente amido, como a grande maioria dos acessos de mandioca cultivados comercialmente (Carvalho et al, , 2004. Assim, a mandioca que sempre foi cultivada em razão de suas raízes tuberosas ricas em amido e/ou de sua parte aérea rica em proteínas, apresenta agora novas possibilidades de utilização na indústria.…”
Section: Introductionunclassified
“…Assim, a mandioca que sempre foi cultivada em razão de suas raízes tuberosas ricas em amido e/ou de sua parte aérea rica em proteínas, apresenta agora novas possibilidades de utilização na indústria. Esses acessos diferenciados podem vir a ser empregados na produção de glicose sem hidrólise do amido, na produção de amido com variabilidade na proporção amilose/amilopectina, na produção de amido do tipo glicogênio, na produção de álcool (combustível e para indústria de cosméticos), na siderúrgia, entre outras utilidades (Carvalho et al, , 2004.…”
Section: Introductionunclassified