Paper · 1996 · HortScience

Comparison of Nutritional Composition of Two Edible Species of Cnidoscolus (Tree Spinach)

Joseph O. Kuti

7
claims
9
verbatim quotes
0
citations
2
research areas
✓
Open access

Abstract

The tree spinach ( Cnidoscolus spp., Euphorbiaceae), called chaya in south Texas, is popular in Mexico and Central America and has been introduced into the United States (mainly Texas and Florida) for potential uses as a leafy vegetable plant. Nutritional composition of raw and cooked leaves of two chaya species ( C. chayamansa and C. aconitifolius ) were determined and compared with nutritional composition of spinach ( Spinicia oleraceae ). While the two chaya species contained substantially greater amounts of mineral nutrients and vitamins than spinach, no significant differences were found in the amounts of mineral nutrients and vitamins, except in relative compositions of fatty acids and amino acids, among the chaya species. Cooking slightly reduced nutritional composition of both chaya and spinach leaves. Because of the presence of toxic hydrocyanic glycosides in chaya leaves, cooking, which inactivates the toxic compound, is essential.

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Claims 7

Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The two chaya species had substantially more mineral nutrients than spinach.

Taxon
chayae0
Outcome
mineral nutrientse0
Direction
greatere0
Comparator
spinache0

Verbatim

e0

“the two chaya species contained substantially greater amounts of mineral nutrients and vitamins than spinach”

✓ located verbatim in the source · abstract, characters 452–560 · show in text ↑
Observationobservedoriginal resultpositivemeasured

Claim · model-written summary

The two chaya species had substantially more vitamins than spinach.

Taxon
chayae0
Outcome
vitaminse0
Direction
greatere0
Comparator
spinache0

Verbatim

e0

“the two chaya species contained substantially greater amounts of mineral nutrients and vitamins than spinach”

✓ located verbatim in the source · abstract, characters 452–560 · show in text ↑
Observationobservedoriginal resultno effectnot significant (as stated)measured

Claim · model-written summary

Mineral nutrient and vitamin amounts did not differ significantly between chaya species.

Taxon
chayae0
Outcome
amounts of mineral nutrients and vitaminse0
Direction
no significant differencese0

Verbatim

e0

“no significant differences were found in the amounts of mineral nutrients and vitamins, except in relative compositions of fatty acids and amino acids, among the chaya species”

✓ located verbatim in the source · abstract, characters 562–737 · show in text ↑
Observationobservedoriginal resultmeasured

Claim · model-written summary

Relative fatty acid and amino acid compositions differed between chaya species.

Taxon
chayae0
Outcome
relative compositions of fatty acids and amino acidse0

Not reportedDirection

Verbatim

e0

“except in relative compositions of fatty acids and amino acids, among the chaya species”

✓ located verbatim in the source · abstract, characters 650–737 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cooking slightly reduced the nutritional composition of chaya leaves.

Taxon
chayae0
Organ / stage
leavese0
Treatment
Cookinge0
Outcome
nutritional compositione0
Direction
reducede0

Not reportedComparator

Verbatim

e0

“Cooking slightly reduced nutritional composition of both chaya and spinach leaves”

✓ located verbatim in the source · abstract, characters 739–820 · show in text ↑
Intervention effectobservedoriginal resultnegativemeasured

Claim · model-written summary

Cooking slightly reduced the nutritional composition of spinach leaves.

Organ / stage
leavese0
Treatment
Cookinge0
Outcome
nutritional compositione0
Direction
reducede0

Not reportedComparator

Organisms pictured · Representative pictures of the matched species, not figures from the paper.

Spinacia oleracea
Spinacia oleracea · TaxonRasbak · CC BY-SA 3.0 · Wikimedia Commons ↗

Verbatim

e0

“Cooking slightly reduced nutritional composition of both chaya and spinach leaves”

✓ located verbatim in the source · abstract, characters 739–820 · show in text ↑
Intervention effectobservedoriginal resultpositivemeasured

Claim · model-written summary

Cooking inactivates toxic hydrocyanic glycosides in chaya leaves.

Taxon
chayae1
Treatment
cookinge0
Outcome
inactivates the toxic compounde0

Not reportedComparatorDirection

Verbatim

e0

“cooking, which inactivates the toxic compound, is essential”

✓ located verbatim in the source · abstract, characters 895–954 · show in text ↑
t0

“Tree Spinach”

✓ located verbatim in the source · title, characters 76–88 · show in text ↑
e1

“toxic hydrocyanic glycosides in chaya leaves”

✓ located verbatim in the source · abstract, characters 849–893 · show in text ↑

processing · quality: general · Spinacia oleracea (spinach)Positive and negative results

4 papers: 2 positive, 2 negative or no effect

1 paper in the same direction as this paper · 2 in the opposite direction

  1. positive
  2. positive
  3. no effect
See all 4 papers →

Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.