{"topic_id":"additive_crosswalk_l_proline","category":"additive-crosswalk","context":"---\ntopic_id: additive_crosswalk_l_proline\ncategory: additive-crosswalk\ntitle: \"L-脯氨酸 (en: L-Proline) — additive cross-jurisdiction identity (CN 公告2045 / EU Reg 1831/2003 / AAFCO 2024 / FDA EAFUS)\"\nlang: en\nsource: \"CN 农业部公告第2045号 饲料添加剂品种目录 (first-hand); EU Feed Additives Register (EU Food & Feed Information Portal; first-hand-derived parse pdf-parsed/eu_feed_additives_2023_1813.json); AAFCO Official Publication 2024 Ch.6 (first-hand); FDA EAFUS Substances Added to Food (first-hand). Derived crosswalk; each cell traced to the named source entry.\"\nsource_file: pdf-raw/cn-law/cn_feed_additive_dir_ann2045_fujian_compile.normalized.txt ; pdf-raw/fda_substances_added_to_food_20260718.csv ; pdf-parsed/us-2026/aafco_ch6_2024_parsed.json ; pdf-parsed/eu_feed_additives_2023_1813.json ; pdf-parsed/ca_cfit_ingredients.json\nsource_type: government_regulation\ndate_parsed: 2026-08-07\ntokens_estimated: 600\nverification: {method: derived_from_dataset, claims: 9, passed: 9, date: 2026-08-08}\ncitation:\n  authority: \"MARA 公告 2045 (CN) / EU Feed Additives Register — EU Food & Feed Information Portal (EU) / AAFCO (US) / FDA EAFUS (US)\"\n  title: \"L-脯氨酸 — additive cross-jurisdiction identity\"\n  url: \"https://ec.europa.eu/food/food-feed-portal/screen/feed-additives/\"\n  source: [\"https://www.aafco.org/\", \"http://www.moa.gov.cn/\", \"https://www.fda.gov/food/food-additives-petitions/substances-added-food-previously-known-eafus\"]\n  retrieved: \"2026-08-07\"\n  ref: \"Each jurisdiction's name/authorisation is quoted from the first-hand source; the crosswalk verdict is a derived comparison anchored on substance identity, not a claim of regulatory equivalence. EU cell quotes the E-number and additive name verbatim from the parsed EU Feed Additives Register dataset (pdf-parsed/eu_feed_additives_2023_1813.json).\"\n  doc_type: \"derived crosswalk of first-hand regulations (public domain)\"\n  needs_review: false\nauthority_tier: T1\nauthority_tier_basis: \"T1: derived from T1 first-hand government regulations (CN/EU/AAFCO/FDA EAFUS)\"\nauthority_tier_date: 2026-08-07\n---\n\n# L-脯氨酸 — additive cross-jurisdiction identity\n\nDerived crosswalk of how one feed additive is named and authorised across jurisdictions. **No claim of regulatory equivalence is made** — pairings are anchored on the substance identity, and the verdict states where the definitions actually diverge.\n\n- **Substance anchor:** L-脯氨酸 (L-Proline)\n- **Verdict:** `closest_with_differences`\n\n## Per-jurisdiction entry\n\n- **🇨🇳 CN — 公告2045 `L-脯氨酸`**: L-脯氨酸 is listed in 表一 饲料添加剂品种目录 (category 氨基酸、氨基酸盐及其类似物); scope 养殖动物. _(src: CN 公告2045)_\n- **🇪🇺 EU — Feed Additives Register `2b17019`**: L-Proline / CAS No. 147-85-3 / Flavis No. 17.019 — functional category `2 b`. Authorised in the EU feed additives register (first-hand-derived parse of the EU Food & Feed Information Portal register). Cross-jurisdiction note: this EU authorisation is quoted from the register and is not asserted to be equivalent to the CN 公告 2045 / FDA EAFUS entries (definitions, chemical form, or conditions of use may differ). _(src: EU Food & Feed Information Portal feed-additives register; parsed dataset pdf-parsed/eu_feed_additives_2023_1813.json, e_number 2b17019)_\n- **🇺🇸 FDA (US) — EAFUS `147-85-3`**: L-PROLINE listed for FLAVOR ENHANCER where applicable; CAS 147-85-3. _(src: FDA EAFUS, CAS 147-85-3)_\n- **🇺🇸 AAFCO (US) — Ch.6**: No stand-alone AAFCO OP 2024 Ch.6 entry for this substance. AAFCO defines substances only where a corresponding feed ingredient is listed; where absent, the cell is an honest gap, not a claim of non-existence. _(src: AAFCO OP 2024 Ch.6 — gap)_\n\n\n- **🇨🇦 CA — Feeds Regs 2024 (CFIT)**: L-Proline — is the product that contains a minimum of 97% 2-pyrrolidine carboxylic acid, and having the CAS# 147-85-3. It shall be labelled with a guarantee for minimum percent L-proline.  _(src: Canadian Feed Ingredients Table (CFIT), inspection.canada.ca; SOR/2024-132; feed additive listed under Part 1 > Class 5. Nutritional ingredients > 5.1 Amino acids)_\n\n## Crosswalk verdict\n\nCN 公告2045 lists L-脯氨酸 (scope 养殖动物). FDA EAFUS lists L-PROLINE (CAS 147-85-3, used for FLAVOR ENHANCER) as a food substance. AAFCO OP 2024 Ch.6 has no stand-alone entry for this substance (honest gap). Verdict: CN↔US diverge in chemical form or regulatory framing; the pairing is the closest available US analogue, not a confirmed regulatory equivalence (EU filled from the EU Feed Additives Register (FFP parsed dataset)).\n\n\n## Species & use scope (适用范围)\n\nCross-jurisdiction species / use-scope dimension surfaced from each jurisdiction's retrieved source. CN 适用范围 is quoted verbatim from the 公告2045 饲料添加剂品种目录; EU target-species and FDA use-class reflect only what is already present in the topic's own cells (no new source fetches).\n\n- **🇨🇳 CN (公告2045 适用范围)**: 养殖动物  _(src: 农业部公告第2045号 饲料添加剂品种目录, 适用范围)_\n- **🇪🇺 EU (target species)**: honest gap — target-species / conditions of use not present in the currently retrieved EU source (conditions_of_use deferred).  _(src: EU Feed Additives Register — gap)_\n- **🇺🇸 FDA (EAFUS use class)**: FLAVOR ENHANCER  _(src: FDA EAFUS, re-surfaced from topic FDA cell)_\n\n## Sources\n\n- CN: 农业部公告第2045号 《饲料添加剂品种目录》 (first-hand; fujian compile txt, intra-cell line wraps normalised for verbatim quotation)\n- EU: EU Feed Additives Register (EU Food & Feed Information Portal; E-number 2b17019 = L-Proline / CAS No. 147-85-3 / Flavis No. 17.019, category 2 b). First-hand-derived parse: pdf-parsed/eu_feed_additives_2023_1813.json.\n- FDA: FDA EAFUS \"Substances Added to Food\" (pdf-raw/fda_substances_added_to_food_20260718.csv, first-hand)\n- AAFCO: OP 2024 Ch.6 (pdf-parsed/us-2026/aafco_ch6_2024_parsed.json, first-hand)","sources":["additive-crosswalk — L-脯氨酸 — additive cross-jurisdiction identity (retrieved 2026-08-07)"],"source":{"authority":"additive-crosswalk","title":"L-脯氨酸 — additive cross-jurisdiction identity","url":"https://www.aafco.org/","retrieved":"2026-08-07","ref":"","doc_type":"official PDF","source_document":"","verification_file":"pdf-raw/cn-law/cn_feed_additive_dir_ann2045_fujian_compile.normalized.txt ; pdf-raw/fda_substances_added_to_food_20260718.csv ; pdf-parsed/us-2026/aafco_ch6_2024_parsed.json ; pdf-parsed/eu_feed_additives_2023_1813.json ; pdf-parsed/ca_cfit_ingredients.json"},"source_document":"","source_file":"pdf-raw/cn-law/cn_feed_additive_dir_ann2045_fujian_compile.normalized.txt ; pdf-raw/fda_substances_added_to_food_20260718.csv ; pdf-parsed/us-2026/aafco_ch6_2024_parsed.json ; pdf-parsed/eu_feed_additives_2023_1813.json ; pdf-parsed/ca_cfit_ingredients.json","trust":{"authority_tier":"ungraded","fidelity":"verbatim","license":null,"display_grade":"pending"},"tokens_estimated":600,"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."}