Multi-Enzyme Blends for Laundry and Dishwasher Detergent: What Spec Sheets Actually Print

TL;DR

• Manufacturer sheets for granular alkaline protease converge on a working window of roughly pH 6.5–11.5 and 15–60 °C, dosed at about 0.3–1.0% of the powder-detergent base.
• Liquid alkaline protease sheets for fabric liquids sit lower on pH, between 6.5 and 10.0 across two sheets, with a dosage of about 0.2–1.0%.
• A compound protease-plus-amylase granule for fabric and tableware powders prints pH 7.0–11.5, 20–60 °C and 0.3–1.3%.
• Suppliers sell blends on two promises: steady cleaning across the shelf life of the detergent, and lower surfactant load without losing stain removal.
• Not every enzyme in a blend has a published optimum in our data, and where that is the case this article says so instead of guessing.

Which enzymes does a stain need, and what do buyers expect from a blend?

Formulators rarely fight one soil at a time. Rice, noodle water and chocolate leave starch residue that turns sticky and seems to get worse with washing, which is why amylase keeps appearing in detergent discussions. Amylase formulations are pitched as breaking that starch down without letting it redeposit on the cloth. Protease is the workhorse for blood, milk and grass, and simple visual guides now match the enzyme type to the stain category and to the water temperature. Lipase covers fat and oil, and it is sold both for fabric and for tableware detergents.

Cellulase works differently. It is sold for fabric care, where it repairs damaged short fibres rather than attacking a stain. That is why a complete laundry blend often carries protease, lipase and cellulase together.

What manufacturers print versus what buyers are told

The most useful finding from the spec sheets is how consistent they are. Two independent granular protease sheets give near-identical numbers: pH 7.0–11.0 and pH 6.5–11.5, both at 15–60 °C. One of them targets powder detergent and solid dishwashing blocks, so the same window serves both laundry and warewash. Two liquid protease sheets narrow the pH window to 7.0–10.0 and 6.5–9.5, still at 15–60 °C.

Some sheets print nothing numeric at all. A liquid detergent enzyme aimed at industrial laundries and hotel or catering linen services carries no pH, temperature or dosage figure. Treat a sheet like that as a starting conversation, not a specification.

Commercial laundry is a distinct market segment. Suppliers pitch washing-enzyme formulations to hospitality and commercial laundries on fewer re-washes, lasting whiteness and lower energy and chemical use. A separate market view argues that suppliers should move from selling commodity enzyme to selling solutions, meaning application data, custom blends and technical service.

Operating variables: dosage, pH, temperature

Dosage on the sheets is expressed against detergent weight, not against the wash liquor. Reported figures are:

One lipase image record also shows a second, wider figure of 0.5–1.5% on a different line, so read the recommended-dosage line rather than the first number you find. Another lipase-type listing for household cleaning powders prints 0.2–1.0%.

For temperature, the practical read-across is that every protease sheet above starts at 15 °C or 20 °C and stops at 60 °C. That suits cold and warm cycles but not hot sanitising washes, where activity is lost.

Institutional cleaners follow a different logic. One concentrate sold to food-service chains is a protease-plus-lipase blend supplied with a dilution chart, running from 1:100 to 1:200 for general use to 1:10 for heavy soil. That is dilution at point of use, not inclusion in a detergent, so do not mix the two sets of numbers.

Limitations and trade-offs

Stability is the hard part of a blend. Liquid multi-enzyme blends of five to seven enzymes are being positioned with protective stabilisers for concentrated detergent makers, as local alternatives to imported multinational formulations. The selling point is better cold-water stain removal and less graying after repeated washing. Other suppliers stress that activity must hold through storage so that cleaning is consistent for the whole shelf life. Ask for evidence that activity is certified and stability verified inside a detergent system, not only in buffer.

Blends can trade against surfactant. Custom blends are sold to collar-cleaner and household detergent makers as a way to lower surfactant levels without losing cleaning power. Treat that as a hypothesis to test on your own base, because our data holds no measured surfactant reduction.

Windows do not always overlap. A mannanase powder in our range lists pH 4.0–7.5, while our multipurpose granule blend lists pH 7.0–11.0, so a mannanase added to an alkaline base may not perform at its stated optimum.

Price is not the only signal. A price without a stated activity unit and a stated pH window cannot be compared with another.

Trial design and validation

Run the trial in three steps. First, fix the base: powder, liquid, pod or solid block, since the sheets above show the pH window shifting with the format. Second, bracket the dosage at the low and high ends of the printed range, for example 0.2% and 1.0%, and keep a no-enzyme control. Third, test stain sets that match the blend: protein, fat, starch and, if cellulase is present, repeated-wash fabric appearance.

Then age the finished detergent and re-test it at the end of the intended shelf life, because that is exactly where suppliers say blends drift. For commercial laundry, also log re-wash frequency, since that is the metric hospitality buyers are pitched.

Product fit: sourcing protease, lipase, amylase, cellulase

The useful question is which documented grade fits your base. Our live listings include the following:

• Industrial Alkaline Protease 200,000 U/g — optimal pH 8.0–12.0 and 20–60 °C.
• Alkaline Amylase Detergent Enzyme — 10,000 u/g, pH 6.0–10.0, 25–60 °C, dosed at 0.15–0.5%, packed 1 kg per bag with a 12-month shelf life.
• Alkaline Lipase Enzyme for Detergents (ALP01) — 30–50 °C, pH 6.0–10.0, dosed at 0.2–1.0% w/w of the detergent formulation.
• Alkaline Cellulase for Laundry Detergents — request the grade-specific sheet.
• Multipurpose Complex Enzyme Granules for Detergent and Commercial Laundry — protease, lipase, amylase, cellulase and mannanase together, pH 7.0–11.0, 20–60 °C, 0.3–1.0% w/w.
• Six-in-One Compound Enzyme Liquid for Laundry Detergents — a pre-blended liquid format for liquid laundry detergent formulations.
• Triple-Enzyme Granular Laundry & Dishwasher Detergent Enzyme — a pre-blended granule for both laundry and dishwasher use. A dual-enzyme granule and a four-enzyme liquid are also available in the same range.

Browse the full range at the protease enzyme hub. If cellulase is your target in a denim context, see cellulase for denim washing.

Send us your formulation and target process, and we will suggest a starting grade and dose.