1111111111111111 IIIIII IIIII 1111111111 11111 111111111111111 IIIII lllll 111111111111111 11111111  US 20200352177Al  c19)  United States  c12)  Patent Application Publication  Brown  c10)  Pub. No.: US 2020/0352177 Al  (43)  Pub. Date:  Nov. 12, 2020  (54)  LEAVENING AGENTS  (71)  Applicant:  Kudos Blends Ltd.,  Cleobury Mortimer  (GB)  (72)  Inventor:  Daniel James Brown,  Bewdley (GB)  (21)  Appl. No.:  16/937,703  (22)  Filed:  Jul. 24, 2020  Related U.S. Application Data  (63)  Continuation-in-part of application No. 16/312,175,  filed on Dec. 20, 2018, filed as application No.  PCT/GB2017/051831 on Jun. 22, 2017.  (30)  Foreign Application Priority Data  Jun. 23, 2016  Aug. 3, 2016  Dec. 8, 2016  Apr. 21, 2017  Aug. 7, 2019  Apr. 28, 2020  (GB) ................................... 1610976.1  (GB) ................................... 1613385.2  (GB) ................................... 1620894.4  (GB) ................................... 1706373.6  (GB) ................................... 1911296.0  (GB) ................................... 2006222.0  A21D  2102  A23L  27100  (2006.01)  (2006.01)  (51)  Int. Cl.  Publication Classification  (57)  ABSTRACT  (52)  U.S. Cl.  CPC ...............  A21D  2102  (2013.01);  A21D  10104  (2013.01);  A21D  21145  (2013.01);  A23L  27182  (2016.08)  A21D  2114  A21D 10104  (2006.01)  (2006.01)  A leavening composition which gives an enhanced leaven› ing and reduced use of acidulants comprises (1) an alkali  metal bicarbonate, (2) at least 0.1 and preferably at least  mole per mole of bicarbonate of a precipitant which is a  water-soluble alkaline earth metal salt, and (3) optionally an  acidulant, wherein (2) and (3) are present in a total amount  from 105 to 800% of the stoichiometric amount that would  be required to react fully with (1) in a boiling aqueous  solution. In a preferred embodiment the acidulant forms a  water insoluble calcium or magnesium salt and is sufficient  to provide more than 0.105 g replaceable hydrogen per 100  mmol bicarbonate, and the precipitant is a water soluble  calcium or magnesium salt which is capable of precipitating  or complexing with said acidulant and is present in an  amount sufficient to provide a final pH below 6.5 when the  leavening agent is heated in a bakery mix, which allows the  inclusion of an effective amount of a preservative. 