A Protein Only Bees Can Make Turns Up in Every Moroccan Honey Tested

• A protein made only inside bees, called apalbumin 1, was detected in all 22 Moroccan honey samples tested, spanning seven regions and a wide range of floral sources including Carob (Ceratonia siliqua), Daghmous (Euphorbia resinifera) and Zantaz (Bupleurum spinosum) honey
• The amount of this protein varied enormously between samples, from about 27 micrograms per gram in Salvia rosmarinus honey to nearly 791 micrograms per gram in Origanum vulgare honey
• Potassium was the dominant mineral in every sample, ranging from about 270 to almost 1,300 milligrams per kilogram depending on the honey
• Polyphenol content differed more than seventeen fold across samples, from about 14 to 246 milligrams per 100 grams
• Nearly every sample fell within international limits for acidity, moisture, ash and electrical conductivity, with only one or two samples running slightly over on a single measure

Twenty two jars of honey, gathered from beekeepers scattered across seven regions of Morocco, had almost nothing in common on paper. Different flowers, different bee subspecies, different years. And yet a single protein turned up in every last one of them.

Researchers analysing these samples measured a compound called apalbumin 1, a protein that bees themselves produce and that no sugar syrup or corn adulterant can replicate. It was present in all 22 honeys, though the amount varied by more than twenty five fold, from around 27 micrograms per gram in Salvia rosmarinus honey up to nearly 791 micrograms per gram in Origanum vulgare honey. The team also ran a full battery of standard quality tests, covering acidity, moisture, mineral content and antioxidant compounds like polyphenols and flavonoids.

The samples came from beekeepers across the Fez Meknes, Rabat Sale Kenitra, Oriental, Souss Massa, Draa Tafilalet, Beni Mellal Khenifra and Tanger Tetouan regions, drawn from three different honeybee subspecies. Each honey was tested in triplicate for physicochemical properties, four minerals, three separate antioxidant assays and, using a laboratory immunoassay, its apalbumin 1 content.

This matters because honey is expensive enough to attract fakes, and most adulterants are invisible to a simple taste test. A protein that only bees can make, and that shows up reliably across wildly different floral sources and regions, gives buyers and regulators something concrete to check for. The study also found potassium was consistently the most abundant mineral in every sample, and that polyphenol levels swung widely depending on the honey's origin, both signs that these honeys carry a real botanical fingerprint rather than a generic sugar base.

What the study does not do is test how any of these compounds behave once eaten. It measured what was present in the honey itself, not any effect on a person's health. It is a composition and authenticity study, not a clinical one, and it should be read that way.

Across regions, seasons and flower sources, the same bee made protein kept turning up, a small but stubborn signature that a bottle of syrup simply cannot fake. Several of the varieties studied here, including Carob and Daghmous honey, are among those Tayab sources from Moroccan beekeepers.