{"topic_id":"ingredient_potato_tubers","category":"ingredient-nutrition","context":"---\ntopic_id: ingredient_potato_tubers\ncategory: ingredient-nutrition\ntitle: \"Potato tubers — proximate composition (Feedipedia)\"\nlang: en\nsource: \"Feedipedia (INRAE/FAO), 'Potato (Solanum tuberosum) tubers | Feedipedia' (feedipedia.org/node/547)\"\nsource_file: pdf-raw/feedipedia/ingredient_potato_tubers.txt\ndate_parsed: 2026-07-22\ntokens_estimated: 200\nverification:\n  method: substring_match\n  claims: 16\n  passed: 16\n  date: 2026-07-22\n---\n\n# Potato tubers — proximate composition (Feedipedia)\n\nSource: Feedipedia (INRAE/FAO open ingredient database), page \"Potato (Solanum tuberosum) tubers | Feedipedia\" (feedipedia.org/node/547). First-hand web text extracted (tags stripped) to `pdf-raw/feedipedia/ingredient_potato_tubers.txt`; composition values are verbatim from the page's proximate (\"Main analysis\") table. Units as published (% as fed / % DM / MJ/kg DM / g/kg DM). Avg/SD/Min/Max/Nb columns preserved.\n\n## Proximate composition (Main analysis)\n| Nutrient row (verbatim) |\n| --- |\n| Dry matter % as fed 20.6 2.6 10.1 27.3 60 |\n| Crude protein % DM 10.8 0.9 9.2 13 37 |\n| Crude fibre % DM 2.5 0.5 1.5 3.9 30 |\n| Ether extract % DM 0.5 0.2 0.2 1.3 51 |\n| Ash % DM 7.3 2.9 4.4 15.8 33 |\n| Neutral detergent fibre % DM 8.3 * |\n| Acid detergent fibre % DM 3.6 0.5 2.6 4.9 22 * |\n| Starch (polarimetry) % DM 71.9 11.2 56.2 82.3 5 |\n| Total sugars % DM 6.6 2.5 2.3 10.5 11 |\n| Gross energy MJ/kg DM 16.8 0.2 16.7 17.4 13 * |\n| Lysine g/16g N 4.6 4 5.6 3 * |\n| Methionine g/16g N 1.4 1 * |\n| Methionine+cystine g/16g N 2.7 1.9 3.6 2 * |\n| Calcium g/kg DM 0.7 0.3 1 4 |\n| Phosphorus g/kg DM 2.2 0.3 1.9 2.5 6 |\n| Dry matter degradability (effective, k=6%) % 70 1 |\n\nNote: Feedipedia reports composition as Avg, SD, Min, Max, Nb (number of samples). Values are as published; interpretation is left to the API consumer.\n\nSource: `pdf-raw/feedipedia/ingredient_potato_tubers.txt` (Feedipedia node/547, 2026-07-22).\n","sources":[],"tokens_estimated":200,"generated_at":null,"tip":"Use /api/v1/topics to discover more topics. /api/v1/nutrient for precise single-point queries. /api/v1/cross_compare for 2-3 standard comparisons."}