Effect of processing conditions on the content of<i>cis</i>/<i>trans</i>carotene isomers as provitamin A carotenoids in Korean sweet potato varieties

Kim, Heon Woong; Kim, Jung Bong; Poovan, Shanmugavelan; Chung, Mi Nam; Cho, Soo Muk; Lee, Young Min; Cho, Young Sook; Kim, Jae Hyun; Kim, Haeng Ran

doi:10.3109/09637486.2013.854742

Cited by 7 publications

(4 citation statements)

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“…These variables fit a quadratic polynomial regression model, and maximum total carotenoid yield (665.45 g ha -1 , Figure 1E) was observed with the rate of 75.46 kg K 2 O. In many countries, the highest contribution of vitamin A intake (82%) comes from carotenoids contained in plant-based foods (Kim et al, 2014). Therefore, as verified in the present study, management of potassium fertiliser application can contribute to increase total carotenoid yield, thus enabling a higher intake of carotenoids by the population.…”

Section: Potassiummentioning

confidence: 95%

Carotene Yield in Sweet Potato After Potassium and Phosphorus Fertiliser Application

et al. 2019

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Sweet potato is one of the most important foods in the world. Among the different cultivated genotypes, it is worth highlighting those with orange pulp due to their ability to supply adequate amounts of provitamin A carotenoids to humans. This study evaluates the effect of potassium and phosphorus fertiliser application on carotenoid yield in sweet potatoes. Two experiments were carried out in São Luis City, Maranhão State, Brazil. The experimental design was a randomised block design, with six treatments for each of the studies (0, 30, 60, 90, 120 and 150 kg ha-1 K2O and 0, 60, 120, 180, 240 and 300 kg ha-1 P2O5), with four replicates. Cultivar 'Beauregard' was used, which has high levels of carotenoids. Roots were harvested at 123 days after planting for both experiments. The following variables were evaluated: root fresh and dry weight, dry weight content, in addition to the yield and contents of total carotenoids, α-carotene, β-carotene, 13-cis β-carotene and 9-cis β-carotene. With the average data of the evaluated characteristics, we performed analysis of variance and polynomial regression analysis. Potassium rates influenced carotenoid yield in sweet potato roots, with the rates of 73 to 77 kg ha-1 K2O being recommended to maximise the production of total carotenoids, β-carotene, and α-carotene. Phosphorus, in turn, influenced only total carotenoids, and is recommended at the rate of 174.09 kg ha-1 P2O5 to maximise the production of these nutrients.

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Section: Potassiummentioning

confidence: 95%

Carotene Yield in Sweet Potato After Potassium and Phosphorus Fertiliser Application

et al. 2019

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“…As mentioned above, cultivated sweetpotatoes have the ability to synthesize various kinds of carotenoids in tuberous root, which are responsible for the vivid flesh colors. The carotenoids in the tuberous root of sweetpotato include bcarotene, b-cryptoxanthin, zeaxanthin, violaxanthin and other carotenoids (Ishiguro et al, 2010;Kim et al, 2012;Kim et al, 2013;Kim et al, 2014). Ishiguro et al (Ishiguro et al, 2010) analyzed the different colors of eight sweetpotato cultivars and breeding lines, and showed that the main carotenoids in five different yellow-fleshed sweetpotato are b-carotene 5,8;5′,8′diepoxide (32-51%) and b-cryptoxanthin 5,8-epoxide (11-30%), and b-carotene (< 10%).…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

“…Some genes encoding enzymes in the carotenoid metabolic pathway, including PSY , PDS , ZDS , CRTISO , LCYB , LCYE , CHYB , ZEP, 9-cis-epoxycarotenoid dioxygenase ( NCED ), and carotenoid cleavage dioxygenases ( CCD ), have previously been cloned and characterized in sweetpotato ( Kim et al., 2013 ; Kang et al., 2017 ; Kang et al., 2018 ; Suematsu et al., 2020 ). It is reported that silencing of CHYB , LCYB , or LCYE using RNAi increases carotenoid accumulation and resistance to abiotic stress such as heat, drought, and salt in transgenic sweetpotato plants and calli ( Kim et al., 2012 ; Kim et al., 2013 ; Kim et al., 2014 ; Kang et al., 2017 ; Kang et al., 2018 ; Ke et al., 2019 ). Despite some genes and transcription factors related to carotenoid synthesis have been cloned in sweetpotato, the regulatory network controlling the variation in carotenoid content and composition is not well characterized, and rare regulators have been reported based on comparative transcriptome and co-expression network analysis.…”

Section: Introductionmentioning

confidence: 99%

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Integrated analysis of carotenoid metabolites and transcriptome identifies key genes controlling carotenoid compositions and content in sweetpotato tuberous roots (Ipomoea batatas L.)

et al. 2022

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Sweetpotato (Ipomoea batatas L.) with different depths of yellow color contains different compositions of carotenoids, which are beneficial for human health. In this study, we performed an integrated analysis of metabolomic and transcriptomic to identify key genes playing a major role in carotenoid coloration in sweetpotato tuberous roots. Herein, 14 carotenoids were identified in five sweetpotatoes. Orange-red and orange cultivars were dominated by β-carotene (385.33 μg/g and 85.07 μg/g), yellow cultivar had a high β-cryptoxanthin (11.23 μg/g), light-yellow cultivar was rich in zeaxanthin (5.12 μg/g), whereas lutein (3.34 μg/g) was the main carotenoid in white cultivar. Furthermore, 27 differentially expressed genes involved in carotenoid metabolism were identified based on comparative transcriptome. Weighted gene co-expression network analysis identified 15 transcription factors highly associated with carotenoid content in sweetpotatoes. These results provide valuable information for revealing the regulatory mechanism of carotenoid metabolism in different-colored sweetpotato tuberous roots.

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Eskin¹,

Clough²,

List³

2015

Lipid Technology

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A process for the interesterification of fatty materials is disclosed. The steps consist of a prior purification step followed by introduction of soap into the fatty material to form a soap-containing fatty mixture, homogenizing of the mixture by mixing, contacting the said mixture with lipase to produce a soap containing interesterified fatty material and finally removing soaps to yield interesterified material. The soap may be formed in situ by addition of aqueous alkali to the fatty material or introduced directly to the fatty material. /gl Kellens, 2014, US Patent 8 697 393.Effect of vacuum-combined baking of cookies on acrylamide content, texture and colorThe effects of vacuum-combined baking on the acrylamide content, texture and color of cookies was investigated. Baking studies were carried out at 205°C under atmospheric pressure (101 kPa ) or under partially reduced pressure (40-60 kPa). Baking times were adjusted to yield cookies with similar moisture contents, and surface and internal temperatures were monitored to aid in interpretation of the results. Acrylamide content was determined by a liquid chromatography/mass spectrometry (LC/MS) method. Texture measurements were made on a texture analyzer instrument and color by digital image analysis. Sensory tests were also conducted. The results showed that the combined baking process yielded cookies with lower acrylamide contents as baking time was reduced at atmospheric pressure (11 minutes, 57 ng/gm; 7.5 minutes, 32 ng/ gm). Further reductions in acrylamide content were observed at reduced pressures (40-60 kPa, 2.5 minutes, 27 ng/gm). Baking at reduced pressures produced cookies with lighter surface colors, lower hardness, but similar eating qualities as conventional baking. /gl Palazoglu et al., Eur. Food Res. Technol. 2015, 240, 243-249. Separation behavior of octadecadienoic acid isomers and identification of cis-and tran-isomers using gas chromatography A strongly polar cyanopropyl capillary column was used to determine the separation behaviors of 24 octadecadienoic acid methyl esters (18 : 2 ME), which were compared to saturated methyl stearate (18 : OME) and arachidic methyl esters and the dependency of GC column temperature was assessed. The 24 isomers were obtained by performing cis-to trans-isomerization of six regioisomers. There are no reference standards commercially available for the C18 : 2 ME and the elucidation of their elution orders will aid the future identification of cis-trans isomers of C : 18 : 2 ME. The use of equivalent chain lengths was used to identify C : 18 : 2 isomers from partially hydrogenated canola oil. /gl Shibamoto et al., Lipids 2015, 50, 85-100.Low temperature chemical synthesis of high-purity diacylgylcerols (DAG) from monoacylgylcerols (MAG) A chemical method for the low-temperature synthesis of DAG from MAG is reported as well as a simple purification step for preparation of high purity DAG. Reactions were carried out in both solventassisted and solvent-free conditions. Catalysts studied included sodium methoxid...

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Effect of processing conditions on the content ofcis/transcarotene isomers as provitamin A carotenoids in Korean sweet potato varieties

Cited by 7 publications

References 23 publications

Carotene Yield in Sweet Potato After Potassium and Phosphorus Fertiliser Application

Carotene Yield in Sweet Potato After Potassium and Phosphorus Fertiliser Application

Integrated analysis of carotenoid metabolites and transcriptome identifies key genes controlling carotenoid compositions and content in sweetpotato tuberous roots (Ipomoea batatas L.)

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