	US 12,303,543 B2
	Composition for preventing or treating gastritis or peptic ulcer
Jaehoon You, Yongin-si (KR); and Jong Lae Lim, Yongin-si (KR)
Assigned to CHONG KUN DANG PHARMACEUTICAL CORP., Seoul (KR)
Filed by CHONG KUN DANG PHARMACEUTICAL CORP., Seoul (KR)
Filed on Nov. 15, 2023, as Appl. No. 18/509,499.
Application 18/509,499 is a division of application No. 17/520,866, filed on Nov. 8, 2021, granted, now 11,918,618.
Application 17/520,866 is a division of application No. 16/466,353, abandoned, previously published as PCT/KR2017/012349, filed on Nov. 2, 2017.
Claims priority of application No. 10-2017-0004418 (KR), filed on Jan. 11, 2017.
Prior Publication US 2024/0082337 A1, Mar. 14, 2024
Int. Cl. A61K 36/00 (2006.01); A23L 33/105 (2016.01); A61K 36/54 (2006.01)

CPC A61K 36/54 (2013.01) [A23L 33/105 (2016.08)]

1 Claim

1. A preparation method of Cinnamomum cassia extract comprising a) a step of immersing Cinnamomum cassia into ethyl acetate to reduce cinnamic aldehyde and 2-methoxycinnamic aldehyde in the extract; b) a step of removing the ethyl acetate in the step a); and c) a step of extracting Cinnamomum cassia obtained in the step b) with water,

wherein the step a) is performed by immersing Cinnamomum cassia into ethyl acetate having a weight of 1 to 3 times compared to Cinnamomum cassia herb medicine and stirring at 20 to 35° C. for 30 minutes to 3 hours, and

wherein the step c) is performed by extracting Cinnamomum cassia obtained in the step b) for 80 to 100° C. for 2 hours to 6 hours using water of 6 times to 10 times compared to Cinnamomum cassia herb medicine.