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What quality control and in-house lab capabilities do you have?

Top operates in-house QC with: refractometer (Brix / soluble solids), titration unit (total acid), HPLC (total sugar profiling, cAMP / polysaccharides, and patulin per GB 5009.185), sugar assay (GB 5009.8), plus pH, microbiology (plate count, coliforms, mould/yeast) and heavy metals (food-safety). Out-of-spec lots are blocked.

We can arrange third-party verification (SGS, Eurofins) at buyer cost and keep retention samples for re-testing within shelf life. The patulin assay (GB 5009.185) is mandatory for jujube and run on every lot, alongside cAMP/polysaccharide QC.

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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