common acids Flashcards
(40 cards)
1
Q
CH3COOH
A
ACETIC
2
Q
(CH2)4(COOH)2
A
ADIPIC
3
Q
C6H8O7
A
CITRIC
4
Q
HO2CCH=CHCO2H
A
FUMARIC
5
Q
C3H6O3
A
LACTIC
6
Q
HO2CCH2CHOHCO2H
A
MALIC
7
Q
CH3CH2COOH
A
PROPIONIC
8
Q
C6H8O2
A
SORBIC
9
Q
C6H5COOH
A
BENZOIC
10
Q
HOOC-(CH2)2-COOH
A
SUCCINIC
11
Q
C4H4O3
A
SUCCINIC ANHYDRIDE
12
Q
C4H6O6
A
TARTARIC
13
Q
Clear, colorless liquid, PIQUANT smell, sharp flavor
A
acetic
14
Q
used for pickling
A
acetic
15
Q
acetic acid is made by:
A
fermenting fruit juice (oxidize acetylaldehyde/butane)
16
Q
adipic acid is made by:
A
oxidize cyclohexanol
17
Q
adipic is soluble in:
A
ethanol, acetone (NOT water)
18
Q
replacement for vinegar:
A
citric
19
Q
most common acid in fruit/veg
A
citric
20
Q
citric is soluble in:
A
water, ethanol
21
Q
fumaric is made by:
A
ferment glucose/molasses (use rhizopus)
22
Q
used as preservative for dry foods
A
fumaric
23
Q
general purpose use
A
citric, tartaric, succinic
24
Q
used in dairy goods
A
lactic
25
pale yellow, viscous liquid (smelly)
lactic
26
lactic is made by
ferment sugar
27
malic is soluble in:
water and ethanol
28
used in canned fruit/veg
malic
29
used in baked goods to stop molding
propionic
30
oily and pungent liquid
propionic
31
propionic soluble in:
water and ethanol
32
POORLY soluble in water:
| slightly soluble in water:
adipic is poorly soluble
| Fumaric, sorbic, benzoic slightly soluble
33
preservatives:
sorbic, benzoic (salts)
34
benzoic effective for
mold/yeast/some bacteria
35
sorbic effective for
mold/yeast/fungi
36
acidic/bitter taste
succinic
37
only permitted anhydride in food:
succinic anhydride
38
used as leavening agent
succinic anhydride
39
produced in wine fermentation
tartaric
40
inorganic acids used
H3PO4, HCl
