NUTRITIONAL COMPOSITION AND ANTIOXIDANT PROPERTIES OF RAPHIONACME SPLENDENS (SCHL.) TUBERS
People of Western Kordofan (Sudan) are endowed with a deep knowledge concerning the use of wild plants. Tubers of Raphionacme splendens Schl. subspecies splendens Flickr (family Apocynaceae), locally known as Elfayo, are used as a food reserve during times of famine or poor harvest. The aim of this...
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| creator | Doka, Ibtisam G Tigani S., E.l Yagi, S |
| description | People of Western Kordofan (Sudan) are endowed with a deep knowledge
concerning the use of wild plants. Tubers of Raphionacme splendens
Schl. subspecies splendens Flickr (family Apocynaceae), locally known
as Elfayo, are used as a food reserve during times of famine or poor
harvest. The aim of this study was to analyze the nutritional
composition and antioxidant capacity of root tubers of R. splendens.
Samples were collected from South-West Kordofan. Analyses included
determination of moisture, carbohydrate, crude protein, fat, fibre,
ash, minerals, vitamin C, amino acids and fatty acids composition.
Antioxidant activity was determined by the DPPH
(1,1-diphenyl-2-picrylhydrazyl) and ABTS
(2.2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) assays.
The total phenolic content was also assessed. The results, which are
referred to as (%) dry weight, showed that the tubers contained 3.2%
protein, 18% carbohydrate, 0.5% lipid, 2.4% crude fibre, 3.5% ash,
79.2% moisture and gross energy 101.7 kJ/g. The total amino acids were
10776 mg/100g where the essential amino acids represented 28.2%. The
more abundant essential amino acids were leucine (792mg/100g),
isoleucine (712mg/100g) and threonine (536mg/100g). Methionine and
lysine were the limiting amino acids. Minerals were potassium
(259mg/100g), calcium (183mg/100g), magnesium (64mg/100g), phosphorus
(37mg/100g), copper (3.6mg/100g), manganese (2.4mg/100g), zinc
(1.8mg/100g) and iron (1.2mg/100g). Total saturated fatty acids were
45.6% whereas total unsaturated fatty acids were 54.4%. Oleic acid
(32.56%) and palmitic acid (30.23%) were the most abundant fatty acids.
Tubers displayed good antioxidant activity with IC50 values 0.987 and
1.559mg/mL against DPPH and ABTS radicals respectively. Vitamin C was
31.5mg/100g and total phenolic content was 60mg gallic acid equivalent
(GAE) per 100g dry sample and they could be the main contributor to the
antioxidant capacity of the tubers. In conclusion, the results of this
study suggested that tubers of R. splendens could have beneficial
effect for food and/or nutraceutical application for normal growth and
adequate protection against diseases associated with reactions of free
radicals. |
| doi_str_mv | 10.18697/ajfand.73.15195 |
| format | Article |
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concerning the use of wild plants. Tubers of Raphionacme splendens
Schl. subspecies splendens Flickr (family Apocynaceae), locally known
as Elfayo, are used as a food reserve during times of famine or poor
harvest. The aim of this study was to analyze the nutritional
composition and antioxidant capacity of root tubers of R. splendens.
Samples were collected from South-West Kordofan. Analyses included
determination of moisture, carbohydrate, crude protein, fat, fibre,
ash, minerals, vitamin C, amino acids and fatty acids composition.
Antioxidant activity was determined by the DPPH
(1,1-diphenyl-2-picrylhydrazyl) and ABTS
(2.2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) assays.
The total phenolic content was also assessed. The results, which are
referred to as (%) dry weight, showed that the tubers contained 3.2%
protein, 18% carbohydrate, 0.5% lipid, 2.4% crude fibre, 3.5% ash,
79.2% moisture and gross energy 101.7 kJ/g. The total amino acids were
10776 mg/100g where the essential amino acids represented 28.2%. The
more abundant essential amino acids were leucine (792mg/100g),
isoleucine (712mg/100g) and threonine (536mg/100g). Methionine and
lysine were the limiting amino acids. Minerals were potassium
(259mg/100g), calcium (183mg/100g), magnesium (64mg/100g), phosphorus
(37mg/100g), copper (3.6mg/100g), manganese (2.4mg/100g), zinc
(1.8mg/100g) and iron (1.2mg/100g). Total saturated fatty acids were
45.6% whereas total unsaturated fatty acids were 54.4%. Oleic acid
(32.56%) and palmitic acid (30.23%) were the most abundant fatty acids.
Tubers displayed good antioxidant activity with IC50 values 0.987 and
1.559mg/mL against DPPH and ABTS radicals respectively. Vitamin C was
31.5mg/100g and total phenolic content was 60mg gallic acid equivalent
(GAE) per 100g dry sample and they could be the main contributor to the
antioxidant capacity of the tubers. In conclusion, the results of this
study suggested that tubers of R. splendens could have beneficial
effect for food and/or nutraceutical application for normal growth and
adequate protection against diseases associated with reactions of free
radicals.</description><identifier>ISSN: 1684-5358</identifier><identifier>ISSN: 1684-5374</identifier><identifier>EISSN: 1684-5374</identifier><identifier>DOI: 10.18697/ajfand.73.15195</identifier><language>eng</language><publisher>Nairobi: Rural Outreach Program</publisher><subject>Amino acids ; antioxidant activity ; Antioxidants ; Apocynaceae ; fatty acids ; Flowers & plants ; Food ; Indigenous knowledge ; Nutrition ; Nutritional aspects ; proximate analysis ; Raphionacme splendens ; Tubers</subject><ispartof>African journal of food, agriculture, nutrition, and development : AJFAND, 2016-03, Vol.16 (1), p.10632-10648</ispartof><rights>Copyright 2016 - African Journal of Food, Agriculture, Nutrition and Development</rights><rights>COPYRIGHT 2016 Rural Outreach Program</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-b5115-bebb0b3eeef76a38e17ee6c9ff12f5eed7dac7506724abe29720da2bc8a721553</citedby><cites>FETCH-LOGICAL-b5115-bebb0b3eeef76a38e17ee6c9ff12f5eed7dac7506724abe29720da2bc8a721553</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,864,27924,27925,79426</link.rule.ids></links><search><creatorcontrib>Doka, Ibtisam G</creatorcontrib><creatorcontrib>Tigani S., E.l</creatorcontrib><creatorcontrib>Yagi, S</creatorcontrib><creatorcontrib>University of Khartoum</creatorcontrib><creatorcontrib>University of Kordofan</creatorcontrib><title>NUTRITIONAL COMPOSITION AND ANTIOXIDANT PROPERTIES OF RAPHIONACME SPLENDENS (SCHL.) TUBERS</title><title>African journal of food, agriculture, nutrition, and development : AJFAND</title><description>People of Western Kordofan (Sudan) are endowed with a deep knowledge
concerning the use of wild plants. Tubers of Raphionacme splendens
Schl. subspecies splendens Flickr (family Apocynaceae), locally known
as Elfayo, are used as a food reserve during times of famine or poor
harvest. The aim of this study was to analyze the nutritional
composition and antioxidant capacity of root tubers of R. splendens.
Samples were collected from South-West Kordofan. Analyses included
determination of moisture, carbohydrate, crude protein, fat, fibre,
ash, minerals, vitamin C, amino acids and fatty acids composition.
Antioxidant activity was determined by the DPPH
(1,1-diphenyl-2-picrylhydrazyl) and ABTS
(2.2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) assays.
The total phenolic content was also assessed. The results, which are
referred to as (%) dry weight, showed that the tubers contained 3.2%
protein, 18% carbohydrate, 0.5% lipid, 2.4% crude fibre, 3.5% ash,
79.2% moisture and gross energy 101.7 kJ/g. The total amino acids were
10776 mg/100g where the essential amino acids represented 28.2%. The
more abundant essential amino acids were leucine (792mg/100g),
isoleucine (712mg/100g) and threonine (536mg/100g). Methionine and
lysine were the limiting amino acids. Minerals were potassium
(259mg/100g), calcium (183mg/100g), magnesium (64mg/100g), phosphorus
(37mg/100g), copper (3.6mg/100g), manganese (2.4mg/100g), zinc
(1.8mg/100g) and iron (1.2mg/100g). Total saturated fatty acids were
45.6% whereas total unsaturated fatty acids were 54.4%. Oleic acid
(32.56%) and palmitic acid (30.23%) were the most abundant fatty acids.
Tubers displayed good antioxidant activity with IC50 values 0.987 and
1.559mg/mL against DPPH and ABTS radicals respectively. Vitamin C was
31.5mg/100g and total phenolic content was 60mg gallic acid equivalent
(GAE) per 100g dry sample and they could be the main contributor to the
antioxidant capacity of the tubers. In conclusion, the results of this
study suggested that tubers of R. splendens could have beneficial
effect for food and/or nutraceutical application for normal growth and
adequate protection against diseases associated with reactions of free
radicals.</description><subject>Amino acids</subject><subject>antioxidant activity</subject><subject>Antioxidants</subject><subject>Apocynaceae</subject><subject>fatty acids</subject><subject>Flowers & plants</subject><subject>Food</subject><subject>Indigenous knowledge</subject><subject>Nutrition</subject><subject>Nutritional aspects</subject><subject>proximate analysis</subject><subject>Raphionacme splendens</subject><subject>Tubers</subject><issn>1684-5358</issn><issn>1684-5374</issn><issn>1684-5374</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>RBI</sourceid><sourceid>N95</sourceid><sourceid>KPI</sourceid><recordid>eNqNktGPlDAQxonRxPP03UcSfbhLBFugFB6R5W6JLBBgo_GlKTCsbFg4KcTzv7cuerqbezBNO9PJ75t0mk9RXmOkY8d26Xu-b3hf69TUMcEueaJcYNuxNGJS6-lDTpznygsh9ghZhNjWhfIl3hZZWIRJ7EWqn2zSJD_eVC9eyS3Tz-FKRjXNkjTIijDI1eRGzbx0_UvjbwI1T6MgXgVxrl7l_jrSr9Vi-yHI8pfKs4Z3Al79jpfK9iYo_LUWJbeh70VaSTAmWglliUoTABpqc9MBTAHsym0abDQEoKY1ryhBNjUsXoLhUgPV3Cgrh1MDE2JeKm-Xvnfj8G0GMbHv7QiNVApmEMemLjINQ2JXZ9ihFRV0He9hmM_QN2fofpjHXg5xSmkLteMdsLZvhmnk1Q56GHk39NC0suxZRD7SsQwkef0RXq4aDm31qOD6RCCZCe6nHZ-FYB_T8L_ZcPPplH33D1vOou1ByEO0u6-TWCQnOFrwahyEkD_L7sb2wMcfDCN29B5bvMeoyY7e-ztq2Q6d7P6gqMaWsz9FqehrbCNsmz8BBo7S2A</recordid><startdate>20160301</startdate><enddate>20160301</enddate><creator>Doka, Ibtisam G</creator><creator>Tigani S., E.l</creator><creator>Yagi, S</creator><general>Rural Outreach Program</general><scope>RBI</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>N95</scope><scope>IMW</scope><scope>KPI</scope></search><sort><creationdate>20160301</creationdate><title>NUTRITIONAL COMPOSITION AND ANTIOXIDANT PROPERTIES OF RAPHIONACME SPLENDENS (SCHL.) TUBERS</title><author>Doka, Ibtisam G ; Tigani S., E.l ; Yagi, S</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-b5115-bebb0b3eeef76a38e17ee6c9ff12f5eed7dac7506724abe29720da2bc8a721553</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2016</creationdate><topic>Amino acids</topic><topic>antioxidant activity</topic><topic>Antioxidants</topic><topic>Apocynaceae</topic><topic>fatty acids</topic><topic>Flowers & plants</topic><topic>Food</topic><topic>Indigenous knowledge</topic><topic>Nutrition</topic><topic>Nutritional aspects</topic><topic>proximate analysis</topic><topic>Raphionacme splendens</topic><topic>Tubers</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Doka, Ibtisam G</creatorcontrib><creatorcontrib>Tigani S., E.l</creatorcontrib><creatorcontrib>Yagi, S</creatorcontrib><creatorcontrib>University of Khartoum</creatorcontrib><creatorcontrib>University of Kordofan</creatorcontrib><collection>Bioline International</collection><collection>CrossRef</collection><collection>Gale Business: Insights</collection><collection>Gale In Context: World History</collection><collection>Gale In Context: Global Issues</collection><jtitle>African journal of food, agriculture, nutrition, and development : AJFAND</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Doka, Ibtisam G</au><au>Tigani S., E.l</au><au>Yagi, S</au><aucorp>University of Khartoum</aucorp><aucorp>University of Kordofan</aucorp><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>NUTRITIONAL COMPOSITION AND ANTIOXIDANT PROPERTIES OF RAPHIONACME SPLENDENS (SCHL.) TUBERS</atitle><jtitle>African journal of food, agriculture, nutrition, and development : AJFAND</jtitle><date>2016-03-01</date><risdate>2016</risdate><volume>16</volume><issue>1</issue><spage>10632</spage><epage>10648</epage><pages>10632-10648</pages><issn>1684-5358</issn><issn>1684-5374</issn><eissn>1684-5374</eissn><abstract>People of Western Kordofan (Sudan) are endowed with a deep knowledge
concerning the use of wild plants. Tubers of Raphionacme splendens
Schl. subspecies splendens Flickr (family Apocynaceae), locally known
as Elfayo, are used as a food reserve during times of famine or poor
harvest. The aim of this study was to analyze the nutritional
composition and antioxidant capacity of root tubers of R. splendens.
Samples were collected from South-West Kordofan. Analyses included
determination of moisture, carbohydrate, crude protein, fat, fibre,
ash, minerals, vitamin C, amino acids and fatty acids composition.
Antioxidant activity was determined by the DPPH
(1,1-diphenyl-2-picrylhydrazyl) and ABTS
(2.2'-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid) assays.
The total phenolic content was also assessed. The results, which are
referred to as (%) dry weight, showed that the tubers contained 3.2%
protein, 18% carbohydrate, 0.5% lipid, 2.4% crude fibre, 3.5% ash,
79.2% moisture and gross energy 101.7 kJ/g. The total amino acids were
10776 mg/100g where the essential amino acids represented 28.2%. The
more abundant essential amino acids were leucine (792mg/100g),
isoleucine (712mg/100g) and threonine (536mg/100g). Methionine and
lysine were the limiting amino acids. Minerals were potassium
(259mg/100g), calcium (183mg/100g), magnesium (64mg/100g), phosphorus
(37mg/100g), copper (3.6mg/100g), manganese (2.4mg/100g), zinc
(1.8mg/100g) and iron (1.2mg/100g). Total saturated fatty acids were
45.6% whereas total unsaturated fatty acids were 54.4%. Oleic acid
(32.56%) and palmitic acid (30.23%) were the most abundant fatty acids.
Tubers displayed good antioxidant activity with IC50 values 0.987 and
1.559mg/mL against DPPH and ABTS radicals respectively. Vitamin C was
31.5mg/100g and total phenolic content was 60mg gallic acid equivalent
(GAE) per 100g dry sample and they could be the main contributor to the
antioxidant capacity of the tubers. In conclusion, the results of this
study suggested that tubers of R. splendens could have beneficial
effect for food and/or nutraceutical application for normal growth and
adequate protection against diseases associated with reactions of free
radicals.</abstract><cop>Nairobi</cop><pub>Rural Outreach Program</pub><doi>10.18697/ajfand.73.15195</doi><tpages>17</tpages><oa>free_for_read</oa></addata></record> |
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| ispartof | African journal of food, agriculture, nutrition, and development : AJFAND, 2016-03, Vol.16 (1), p.10632-10648 |
| issn | 1684-5358 1684-5374 1684-5374 |
| language | eng |
| recordid | cdi_proquest_wirefeeds_2586790322 |
| source | DOAJ Directory of Open Access Journals; Bioline International; EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection |
| subjects | Amino acids antioxidant activity Antioxidants Apocynaceae fatty acids Flowers & plants Food Indigenous knowledge Nutrition Nutritional aspects proximate analysis Raphionacme splendens Tubers |
| title | NUTRITIONAL COMPOSITION AND ANTIOXIDANT PROPERTIES OF RAPHIONACME SPLENDENS (SCHL.) TUBERS |
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