universally liked neither formula received a negative rating both the glucosamine hydrochloride or glucosamine sulphate containing formula received a negative rating but never a positive rating panellists used the term sweet more frequently with the n acetylglucosamine containing formula 7 times than any other formula the term sweet was used 5 times in conjunction with the control formula the term sweet was used once in conjunction with the glucosamine sulphate formula but never with the glucosamine hydrochloride containing formula this confirms that n acetylglucosamine acts as a sweetening agent when added to foods the taste sour salty was ascribed to the glucosamine hydrochloride containing formula 8 times and to the glucosamine sulphate formula 6 times this negative attribute was never associated with the control or the n acetylglucosamine containing formula the taste bitter was ascribed 5 times to the glucosamine sulphate containing formula and 3 times to the glucosamine hydrochloride containing formula this negative attribute was never associated with the control or the n acetylglucosamine containing formula n acetylglucosamine when added to food for baking has a pleasant and sweet taste other glucosamines such as glucosamine hydrochloride and glucosamine sulphate are associated with negative tastes when added to food and break down during the heating process 1 textbook of biochemistry with clinical correlations fourth edition 1997 thomas m devlin editor wiley liss inc publisher toronto 2 burton a f and f h anderson 1983 u201c decreased incorporation of 14c glucosamine relative to 3h n acetyl glucosamine.