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How do you authenticate longan-concrete and screen for adulteration?

Top authenticates by:

  • HPLC for sugars and GC for the fruity-floral volatile fingerprint matched to the natural Dimocarpus longan Lour. (longan) profile and the GC/MS fingerprint
  • GC/MS fingerprint plus targeted adulterant screening
  • Species + "Dimocarpus longan Lour. (longan) species-specific raw material" declaration on COA
  • Heavy metals + microbiology per food-safety.

Every lot ships with COA plus assay. We screen adulterants, heavy metals and solvent residue.

Lots failing the natural profile or exceeding limits are blocked.

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บทความนี้เผยแพร่เมื่อ 2026-09-22 และอัปเดตล่าสุดเมื่อ 2026-09-22 โดยจะมีการปรับปรุงเนื้อหาอย่างต่อเนื่อง

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Guilin Four Seasons Sunshine

Founded in 2006, Guilin Four Seasons Sunshine F&F Co., Ltd. is a natural plant extract manufacturer and OEM/ODM partner in Guilin, China, combining proprietary Living-Fragrance physical extraction with supercritical fluid extraction to deliver pure, traceable botanical ingredients to global food, flavor, fragrance and personal care brands. test