Table 2. Protein oxidation and lipid oxidation values in semi-dried restructured jerky prepared with loquat leaf extract (LE) and ascorbic acid (AA) during storage

Treatment Storage (d)
1 20 45 90 135 180
Sulfhydryl concentration (nmol/mg protein)
 Control 48.27±0.13Fa 38.61±0.15Fb 33.80±0.09Fc 28.99±0.06Fd 24.33±0.04Fe 18.91±0.06Ff
 AA 51.82±0.29Da 45.76±0.31Eb 43.84±0.06Dc 38.88±0.13Dd 32.52±0.21Ee 26.14±0.09Ef
 LE 0.15 51.23±0.07Ea 46.76±0.35Db 39.41±0.12Ec 35.81±0.15Ed 33.08±0.09De 29.37±0.04Df
 LE 0.15-AA 55.80±0.33Ca 51.49±0.24Cb 44.48±0.06Cc 39.82±0.13Cd 35.67±0.14Ce 32.08±0.02Cf
 LE 0.3 56.79±0.03Ba 53.55±0.25Bb 46.73±0.20Bc 44.48±0.06Bd 39.73±0.10Be 35.67±0.14Bf
 LE 0.3-AA 62.77±0.05Aa 60.45±0.30AB 56.08±0.38AC 53.68±0.14Ad 48.06±0.12Ae 44.51±0.34Af
TBARS (mg MDA/kg)
 Control 0.36±0.00Ae 0.39±0.01Ad 0.41±0.01Ac 0.42±0.01Ab 0.42±0.01Ab 0.45±0.01Aa
 AA 0.35±0.00Ce 0.36±0.00Bcd 0.40±0.00BCc 0.41±0.01Bb 0.40±0.00CDb 0.44±0.01Ba
 LE 0.15 0.35±0.00Be 0.36±0.00Bd 0.40±0.00Bc 0.40±0.01BCc 0.41±0.00Bb 0.44±0.01BCa
 LE 0.15-AA 0.35±0.00Ce 0.36±0.00BCd 0.39±0.01DC 0.40±0.01CDbC 0.40±0.00Db 0.43±0.01DEa
 LE 0.3 0.35±0.00Ce 0.36±0.00Cd 0.39±0.00CDc 0.40±0.01DEc 0.41±0.01BCb 0.43±0.01CDa
 LE 0.3-AA 0.35±0.00Cd 0.35±0.00Cd 0.39±0.00Cc 0.39±0.01Ec 0.40±0.01Db 0.43±0.01Ea
Storage LE AA Storage×LE Storage×AA LE×AA Storage×LE×AA
Sulfhydryl concentration
p-value *** *** *** *** *** *** ***
TBARS
p-value *** *** *** *** ** *** **
All values are mean±SE of three replicates.
Control, no antioxidant; AA, added 0.05% ascorbic acid; LE 0.15, added 0.15 loquat leaf extract; LE 0.15-AA, added 0.15% loquat leaf extract and 0.05% ascorbic acid; LE 0.3, added 0.3% loquat leaf extract; LE0.3-AA, added 0.3% loquat leaf extract and 0.05% ascorbic acid.
Means sharing different letters in the same column are significantly different.
Means sharing different letters in the same row are significantly different.
p<0.01
p<0.001.
TBARS, thiobarbituric acid-reactive substances; MDA, malondialdehyde.