Food Biochemistry and Food Processing (2 edition)

BLBS102-c21 BLBS102-Simpson March 21, 2012 13:39 Trim: 276mm X 219mm Printer Name: Yet to Come

Table 21.2.

Extraction Conditions, Yield, and Bloom/Gel Strength of Gelatin Extracted from Different Fish

Pretreatments

Raw Materials

Non-Collageneous Matter

Removal

Swelling

Extraction

Yield (On Wet

Basis)

Bloom/GelStrength

References

Giant catfish skin

(Pangasianodongigas

)

0.2 M NaOH at 4

◦Cfor

90 min

0.05 M acetic acid at

24–26

◦Cfor3h

Water at 45

◦Cfor

12 h

20.1%

153 g

Jongjareonrak et al.

(2010)

Brownbanded bamboo

shark (BBS,Chiloscylliumpunctatum

) and

blacktip shark (BTS,Carcharhinuslimbatus

)

0.1 M NaOH at 15–20

◦C

for 2 h, followed by1 M HCl at 15–20

◦C

for 1 h

0.2 M acetic acid at

25–26

◦C for 15 min

Water at 45

◦C,

60

◦C, and 75

◦C

for 6 and 12 h

19.06–22.81%

(BBS) and21.17–24.76%(BTS)

56.53–217.26g

(BBS)10.43–207.83g(BTS)

Kittiphattanabawon

et al. (2010)

Cuttlefish skin (

Sepia

pharaonis

)

0.05 N NaOH at 26–28

◦C

for 6 h, followed by 5%(v/v) h

O 2

2

at 4

◦Cfor

16 h

None

Water at 60

◦Cfor

12 h

36.82%

a

(dorsal

skin) and59.69%

a

(ventral skin)

126 g (dorsal skin)

and 137 g(ventral skin)

Aewsiri et al.

(2009a)

Bigeye snapper skin

(Priacanthustayenus

)

0.025 M NaOH at

26–28

◦Cfor2h

None

0.2 M acetic acid in

the presence ofpepsin (15 unit/g)at 4

◦C for 48 h,

followed byincubation at 45

◦C for 12 h

40.3%

b

138.6 g

Nalinanon et al.

(2008)

Tuna fin (

Katsuwonus

pelamis

)

0.025 N NaOH at

26–28

◦Cfor1h,

followed by 0.6 N HClat 26–28

◦Cfor5days

0.2 M acetic acid at

26–28

◦Cfor3h

Water at 50

◦Cfor

12 h

1.25%

126 g (at pH 6)

Aewsiri et al.

(2008)

Channel catfish

(Ictalurus punctatus

)

0.2 M NaOH at 4

◦Cfor

84 min

0.115 M acetic acid at

◦ 4

C for 60 min

Water at 55

◦C for 3 h 19.2%

c

252 g

Yang et al. (2007)

Atlantic salmon skin

(Salmo salar

)

0.04 N NaOH at 8

◦Cfor

1h

0.12 M h

SO 2

4

for 30 min,

followed by 0.005 Mcitric acid for 30 min at◦ 8

C

Two step-extractions

with water at 56

◦C and 65

◦C,

respectively, for2 h each step

11.3% (56

◦C)

and 4.0%(65

◦C)

108 g (56

◦C) 80 g

(65

◦C)

Arnesen

and gildberg(2007)

Bigeye snapper skin

(P. tayenus

)

0.2 M NaOH at 4

◦Cfor

90 min

0.05 M acetic acid at

25

◦Cfor3h

Water at 45

◦Cfor

12 h

6.5%

105.7 g

Jongjareonrak et al.

(2006c)

Brownstripe red

snapper skin(Lutjanus vitta

)

0.2 M NaOH at 4

◦Cfor

90 min

0.05 M acetic acid at

25

◦Cfor3h

Water at 45

◦Cfor

12 h

9.4%

218.6 g

Jongjareonrak et al.

(2006)

Giant squid inner and

outer tunics(Dosidicus gigas

)

Not mentioned

0.5 M acetic acid

containing porcinepepsin at 2

◦C for 72 h

Water at 60

◦Cfor

18 h

12%

147 g

Gim

́enez et al.

(2009)

(continued)

393