Physicochemical and antioxidant capacity analysis of colored sweet potato genotypes: in natura and thermally processed

Vizzotto, M.; Pereira, Elisa dos Santos; Vinholes, Juliana; Munhoz, P. C.; Ferri, N. M. L.; Castro, Luis Antônio Suíta de; Krolow, A. C. R.

doi:10.1590/0103-8478cr20151385

Cited by 26 publications

(28 citation statements)

References 22 publications

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“…The moderate proportion of protein is a valuable nutritional factor in the pigmented genotypes due to its contribution of essential amino acids, which makes its flour appreciated to be used as a complement to cereal flours that have small amounts of that amino acid. Purple genotypes showed the highest TSS content, and no major relation to flesh color was observed in accordance with previous studies [8,51].…”

Section: Discussionsupporting

confidence: 92%

“…Total soluble solids (TSS) content is an important quality parameter that determines the quality of the processed food product [33]. Various studies revealed that TSS varied from 7.30 to 14.57 ºBrix in fresh sweetpotato storage roots, depending on skin and flesh colors [8,23,33,51]. The maturity stage and edaphoclimatic conditions also influence TSS, which is also related to the DMC [23].…”

Section: Introductionmentioning

confidence: 99%

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Genotypic and environmental factors influence the proximate composition and quality attributes of sweetpotato (Ipomoea batatas L.)

et al. 2020

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Background Sweetpotato is an important staple food crop worldwide. The genotype mainly influences the nutritional quality of its storage roots, but environmental conditions could produce significant variations in chemical composition and quality. The aim of this study was to characterize sweetpotato diversity of 20 selected genotypes and identify harvest time (90, 120, and 150 days after planting-DAP) and environmental effects on quality attributes estimated by proximate analysis (dry matter, ash, crude fiber, total protein, and total soluble solids). Red (R), green (G), and blue (B) (RGB) analysis was used to characterize the genotypes phenotypically. Results The results of the current study revealed that flesh color was associated with proximate composition. RGB analysis showed that low B pixel values were present in yellow–orange- and purple-fleshed genotypes, which simultaneously exhibited high total protein content (TPC), ash content (AC), and crude fiber (CF), while cream- and white-fleshed genotypes showed high B pixel values and were related to high dry matter content (DMC). In these genotypes, the high DMC was maintained or increased through harvest time, however, a reduction in the proportion of accumulated AC and TPC was observed. On the other hand, in the pigmented genotypes, DMC increased up to 120 DAP, showing major stability in terms of AC and TPC. Regardless of harvest time, more intense rain events 30 days before harvest, affected the storage of DMC in roots negatively, while AC, TPC, and CF were accumulated more efficiently, or their proportion increased. High temperatures increased total soluble solids (TSS) accumulation and reduced AC, TPC, and CF accumulation. The combined analysis, according to the additive main effects and multiplicative interaction (AMMI) model, confirmed these results. Conclusions These findings indicated that white-fleshed genotypes contain high DMC, although, with lower TPC, AC, and CF contents compared to yellow–orange- and purple-fleshed genotypes. Although there is an increase in DMC in extended harvests (in orange-fleshed genotypes up to 120 DAP), the presence of pre-harvest rain promotes its translocation and loss. On the contrary, TPC, AC, and CF can be kept stable or even increase, except in environments with high temperatures that induce low accumulation. The current study provides a better understanding of the nutritional response of sweetpotato diversity under several growing conditions, which can be recognized and used integrally to improve food quality.

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Section: Discussionsupporting

confidence: 92%

Section: Introductionmentioning

confidence: 99%

Genotypic and environmental factors influence the proximate composition and quality attributes of sweetpotato (Ipomoea batatas L.)

et al. 2020

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“…Apesar de a pesquisa não ter detectado quantidades significativas de antocianinas na Beauregard, esta apresentou maior valor de equivalente de betacaroteno, tanto na forma natural como assada, onde houve um pequeno aumento na sua concentração. Esse resultado é explicado pelo fato da Beauregard ser uma cultivar de batata biofortificada, em que as concentrações de carotenoides podem ser até dez vezes superiores a outros cultivares (Vizzotto et al, 2017). Quanto ao teor de compostos fenólicos e a capacidade antioxidante, outras variedades que foram analisadas obtiveram maior destaque quando comparadas à variedade Beauregard.…”

Section: Composiçãounclassified

Batata-Doce Beauregard: Revisão De Literatura / Beauregard Sweet Potato: Literature Review

Vital

Messias

2020

BJD

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Os produtos agrícolas biofortificados são variedades melhoradas que apresentam uma maior quantidade de vitaminas e minerais. Um exemplo é a batata-doce biofortificada Beauregard, que apresenta um alto teor de betacaroteno. Este trabalho tem o objetivo de contribuir com a literatura acerca dessa cultivar. Foi realizada uma revisão da literatura, em que foi verificado que a batatadoce Beauregard é rica nutricionalmente, sendo uma excelente fonte de vitaminas e minerais para o ser humano.

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“…The concentration of nutrients in sweetpotato pulp depends on variety, and environment. Purple sweetpotatoes have high levels of anthocyanins, and consequently, high antioxidant capacity [5]. Conversely, orange sweetpotatoes are an excellent source of carotenoids [6].…”

Section: Introductionmentioning

confidence: 99%

“…The extent and distribution of nutritional variation in sweetpotato is essential for sound recommendation strategies for production and consumption to meet the demand for future food security [7]. Sweetpotato varieties can be identified based on their biochemical profiling [5]. Over time, natural hybridization and selection resulted in evolution of hundreds of native sweetpotato cultivars in Kenya [7].…”

Section: Introductionmentioning

confidence: 99%

Biochemical Diversity of Sweetpotato Genotypes

Ochieng

2019

JHPR

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A comprehensive analysis of the variation in sweetpotato [Ipomoea batatas (L.) Lam.] is essential for sound germplasm conservation and recommendation strategies for production and consumption. The study evaluated biochemical content of 68 sweetpotato genotypes grown at the Miyare Agriculture Training College and Kenya Agricultural and Livestock Research Organization, Embu, Kenya. Ten storage root and seven aerial traits were used in the characterization. Storage root dry matter, protein and total carotenoids contents were all higher at the Miyare Agriculture Training College site compared to the Embu site; storage root sucrose and total starch content were higher in Kenya Agricultural and Livestock Research Organization, Embu, compared to the Miyare Agriculture Training College. Dry matter content ranged from 22.9% to 41.7%, protein content ranged from 5.2% to 13.4%, total carotenoids content ranged from 5.9 µg•g -1 to 33.1 µg•g -1 , sucrose content ranged from 11.0 mg kg -1 to 108.5 mg kg -1 , and total starch ranged from 9.1 mg kg -1 to 97.6 mg kg -1 . The study demonstrates varying biochemical characteristics in sweetpotato, depending on genotypes and location. Selecting and improving sweetpotato genotypes rich in biochemical contents could help to solve the problem of food security and nutrition, especially in developing countries.

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Physicochemical and antioxidant capacity analysis of colored sweet potato genotypes: in natura and thermally processed

Cited by 26 publications

References 22 publications

Genotypic and environmental factors influence the proximate composition and quality attributes of sweetpotato (Ipomoea batatas L.)

Genotypic and environmental factors influence the proximate composition and quality attributes of sweetpotato (Ipomoea batatas L.)

Batata-Doce Beauregard: Revisão De Literatura / Beauregard Sweet Potato: Literature Review

Biochemical Diversity of Sweetpotato Genotypes

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