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. 2020 Sep 22;15(9):e0239794. doi: 10.1371/journal.pone.0239794

Correction: Open-source food: Nutrition, toxicology, and availability of wild edible greens in the East Bay

Philip B Stark, Daphne Miller, Thomas J Carlson, Kristen Rasmussen de Vasquez
PMCID: PMC7508397  PMID: 32960935

There is an error in Table 8. The values 10.94 oxalic acid-soluble (mg/g) and 15.42 oxalic acid-total (mg/g) should appear under the heading oxalis Oxalis pes-caprae instead of the heading nasturtium Tropaelolum majus. Please see the correct Table 8 here.

Table 8. Nutritional tests of wet plant tissue (performed by SCS Global Services in Emeryville, CA) collected by Berkeley Open Source Food in West Oakland, CA, and USDA National Nutrient Database values for raw kale.

chickweed
Stellaria
media
dandelion
Taraxacum
officinale
dock
Rumex
crispus
mallow
Malva
sylvestris
nasturtium
Tropaeolum
majus
oxalis
Oxalis
pes-caprae
kale
Brassica
oleraceae
cal (Kcal) 29.09 34.86 33.37 52.14 46.91 27.52 35.0
fat cal (Kcal) 2.40 3.47 2.47 3.58 6.39 2.52 13.41
fat (g) 0.27 0.39 0.27 0.40 0.71 0.28 1.49
saturated fat (g) 0.01 0.01 0.02 0.01 0.04 0.01 0.18
TFA (g) 0 0 0 0 0 0 0
cholesterol (mg) 0 0 0 0 0 0 0
carbohydrates (g) 5.19 5.55 4.79 7.81 6.90 5.27 4.42
dietary fiber (g) 3.64 5.26 3.39 7.20 3.10 2.99 4.10
total sugars (g) 0 0 0 0 0.37 0 0.99
protein (g) 1.43 2.27 2.63 4.10 3.23 0.98 2.92
Vitamin A (IU) 2282 6577 5396 4637 8182 2369 4812
Vitamin C (mg) 10.66 4.49 36.19 8.65 1.49 9.40 93.40
Na (mg) 45.17 52.34 101.04 42.87 39.97 28.85 53.0
Ca (mg) 65.96 95.90 68.47 273.39 148.46 48.69 254.0
Fe (mg) 1.54 2.73 1.31 3.35 1.18 1.87 1.60
K (mg) 439.82 440.08 310.24 357.09 297.97 128.29 348.0
total phenolics (mg/g) 0.77 0.49 2.77 1.29 2.82 1.68 NA
oxalic acid-soluble (mg/g) 0.18 10.94
oxalic acid-total (mg/g) 0.39 15.42

Results are per 100g of wet tissue except total phenolics and oxalic acid, which are concentrations (mg/g) See Table 6 for sample locations.

Reference

  • 1.Stark PB, Miller D, Carlson TJ, de Vasquez KR (2019) Open-source food: Nutrition, toxicology, and availability of wild edible greens in the East Bay. PLoS ONE 14(1): e0202450 10.1371/journal.pone.0202450 [DOI] [PMC free article] [PubMed] [Google Scholar]

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