Overview
Lettuce powder is produced by dehydrating and finely grinding Lactuca sativa leaves, preserving their nutritional profile. It is valued in B2B markets for its versatility as a natural ingredient. Unlike synthetic additives, it offers a clean-label solution for manufacturers seeking plant-based nutrients or colors. The powder retains most of fresh lettuce’s bioactive compounds, including lutein, folate, and potassium. Industrial processing methods (spray-drying or freeze-drying) determine its particle size and solubility, impacting end-use suitability. Suppliers often customize formulations to meet specific solubility or concentration requirements.
Physical and Chemical Properties
Lettuce powder exhibits hygroscopicity due to its fiber content, requiring airtight packaging to prevent clumping. Its green hue comes from chlorophyll, which may fade under prolonged light exposure. The powder’s mild, slightly earthy flavor makes it adaptable for savory and sweet applications. Nutritionally, it provides approximately 2–4% protein and 8–12% dietary fiber per 100g. Key micronutrients include vitamin K (100–150% DV per serving) and beta-carotene. Analytical certificates should confirm the absence of pesticides for compliance with food safety standards like EU 396/2005 or FDA CFR 21.
Main Applications
In the food industry, lettuce powder is incorporated into soups, snacks, and pasta to boost nutritional claims without altering texture. Its chlorophyll content serves as a natural alternative to synthetic dyes (e.g., FD&C Green No. 3) in confectionery and dairy products. Supplement manufacturers use it in capsule fillers or pressed tablets for its vitamin K content, which supports bone health. Emerging applications include plant-based meat analogs, where it enhances color and adds fiber. Beverage companies utilize water-soluble variants for smoothies and functional drinks.
Safety and Storage
As a perishable plant product, lettuce powder requires strict moisture control (<6% water activity) to prevent microbial growth. Suppliers should provide certificates for Salmonella, E. coli, and aflatoxin testing. Occupational safety guidelines recommend dust masks during handling to avoid inhalation. Storage in UV-resistant bags with oxygen absorbers extends shelf life to 18–24 months. Bulk shipments typically use 25kg multi-layer kraft paper bags with food-grade polyethylene liners. Refrigeration is unnecessary but advisable in humid climates.
B2B Procurement Guide
Buyers should prioritize suppliers with HACCP or ISO 22000 certification to ensure consistent quality. Minimum order quantities (MOQs) commonly range from 100kg to 1 metric ton, with discounts for contracts exceeding 5 tons annually. Key procurement criteria include particle size (80–200 mesh for most applications), organic certification (USDA/EU), and solvent residue reports (if applicable). Sample testing for heavy metals (lead <0.1 ppm, arsenic <0.5 ppm) is critical. Negotiate Incoterms (e.g., CIP or DDP) to clarify logistics responsibilities, especially for international shipments.
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