Nabisco Brands, Inc.

Bernhard V Lengerich

John W Finley

Harry Levine

Lynn C Haynes

Michael S Otterburn

Paul R Mathewson

Cathryn C Warren

The present invention relates to the production of a shelf stable unleavened cookie composition which can be leavened to exhibit a cookie crumb-like structure after baking in a convection, radio frequency, or microwave oven. The cookie composition is prepared by using a cooker extruder to mix ingredients and to heat the ingredients to preferably at least about 200.degree. F. to promote browning and flavor development. The resulting cookie composition has a water activity of less than 0.7, preferably less than 0.6. The cookie composition produced using the cooker extruder is shaped into cookie preforms, and leavened by heating in an oven such as a microwave, convection oven, or a combination thereof. The total moisture content of the cookie mixture is generally less than 10% and preferably less than 8%. Water or a source of water may be admixed with the cookie mixture in an amount sufficient to form a dough-like consistency. The water may be admixed in the extruder after the heating stage to prevent fat separation or alternatively after thc cookie composition has cooled and before use by the consumer. The cookie composition may contain a heat or shear sensitive additive. The additive is admixed with the heat treated cookie composition under conditions such that the additive is not deactivated.

Shelf stable cookie product containing heat and shear sensitive

A cookie product is prepared having a liposome-encapsulated component dispersed therein and leavened to a crumb-like structure. The liposomes substantially retain their structural integrity during the processing, mixing, and post extrusion baking and thus remain intact in the finished cookie. The liposomes may encapsulate flavorings, fragrances, preservatives, anti-staling agents, and other labile food additives. The liposomes may provide a sustained release of the encapsulant to the cookie during storage and prior to consumption. The encapsulant may be released when the cookie is baked or eaten by the consumer. The cookies are prepared by feeding the cookie ingredients to a blending zone of a cooker-extruder and heated to form a heat treated mass. A liposome-encapsulated component is added to the cooled heat treated mass and mixed at low pressure and temperature to prevent rupture of the liposomes. An optional source of water may also be admixed to form a dough-like mixture. The dough-like mixture is then extruded into shaped cookie pieces, and leavened by heating in an oven. The heat treating of the dough-like mixture in the cooker-extruder reduces the post extrusion baking time such that liposomes prepared from phospholipids having a high phase transition temperature substantially retain their structure integrity in the leavened cookie.

Extrusion baking of cookies having liposome encapsulated ingredients

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Ringwood, NJ, United States of America

Bernhard V Lengerich