Afrianti LH. 2008. Teknologi Pengawetan Pangan. Bandung: Alfabeta
Andarwulan N, Kusnandar F, Herawati D. 2011. Analisis Pangan. Jakarta: Dian Rakyat
Arifin B. 2010. Kimia Pangan Jilid I. Bogor; Departemen Kimia Fakultas Matematika dan IPA Institut Pertanian Bogor
Arpah M. 2001. Buku dan Monograf Penentuan Kadaluarsa Produk Makanan. Program Pasca Sarjana Ilmu Pangan IPB, Bogor
Augustin MA, Clarke PT. 2008. Dry Milk Products. In: Rameshh CC, Kilara A, Shah NP. (eds.). Dairy Processing and Quality Assurance. Wiley Blackwell, lowa USA
Barrefors P, Granelli K, Appelqvist LA, Bjoerck L. 1995. Chemical characterization of raw milk samples with and without oxidative off-flavor. J. Dairy Sci. 78: 2691-2699
Budiyono H. 2009. Analisis daya simpan produk susu pasteurisasi berdasarkan kualitas bahan baku mutu susu. Jurnal Paradigma. Vol X: 198-211
Chandan R. 1997. Dairy-Based Ingredients. St.Paul: Eagen press
Farkye N, Smith K, Schonrock FK. 2001. An overview of changes in the characteristics and nutritional value of skim milk powder (SMP) during storage. U.S Dairy Export Council
Floros JD, Gnanasekharan V. 1993. Shelf Life Prediction of Packaged Foods: Chemical, Biological, Physical, and Nutritional Aspects. Chlaralambous G (ed.). Eslevier Publ., London
IDF. 1979. Wettability method in milk powder. Buletin International Dairy Federation, Brussels
IDF. 2002. Determination of peroxide value in milk and milk products. Buletin International Dairy Federation, Brussels
IDF. 99-2:2009. Milk and milk product sensory analysis : Recommended methods for sensory evaluation
25 Immaningsih N. 2013. Pengaruh suhu ruang penyimpanan terhadap kualitas susu
bubuk. Agrointek jurnal: volume 7, no.1
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Penerbit Universitas Indonesia (UI Press)
Labuza TP. 1982. Shelf-Life Dating of Foods. Food and Nutrition Press., Inc., Westport, Connecticut
Li, CT, Wick M, Marriott NG. 1999. Evaluation of lipid oxidation in animal fat. Ohio State university, Colombus, Ohio
Miskiyah. 2011. Kajian standar nasional Indonesia susu cair di Indonesia. Jurnal standarisasi. Vol.13: 1-7
Parodi PW. 2004. Milk fat in human nutrition. Aust. J. Dairy Tech. 59:3-59
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Robertson GL. 2009. Food Packaging and Shelf Life : A practical Guide. CRC Press
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Syarief R, Halid H. 1993. Teknologi Penyimpanan Pangan. Pusat Studi Antar Universitas IPB, Bogor.
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26
LAMPIRAN
Lampiran 1. Diagram uji peroxide oxygen value
Masukkan ke dalam erlenmeyer Tambahkan 25mL klorobutane methanol Panaskan pada suhu 80oC hingga mendidih
Dinginkan pada suhu ruang Saring
Ambil filtrat 3mL
Tambahkan 0,1mL pereaksi FeCl2 : NH4SCN (1:1) , dan 7ml campuran klorobutan : methanol (7:3)
Panaskan pada suhu 55oC salama 2 menit Dinginkan pada suhu ruang
Ukur dengan spektrofotometer DR 2800 pada λ= 490 nm 1,25 gram sampel
27
Lampiran 2. Kefisien korelasi produk susu bubuk tipe-A suhu penyimpanan 30°C
Correlations
waktu_30 nilai_rasa_A_30
Spearman's rho waktu_30 Correlation Coefficient 1,000 -,954**
Sig. (2-tailed) . ,001
N 7 7
**. Correlation is significant at the 0.01 level (2-tailed).
Correlations
waktu_30 POV_A_30 FFA_A_30
waktu_30 Pearson Correlation 1 ,942** ,944**
Sig. (2-tailed) ,001 ,001
N 7 7 7
**. Correlation is significant at the 0.01 level (2-tailed). *. Correlation is significant at the 0.05 level (2-tailed).
Correlations
waktu_30 wettability_A_30
waktu_30 Pearson Correlation 1 ,976**
Sig. (2-tailed) ,000
N 7 7
**. Correlation is significant at the 0.01 level (2-tailed).
Correlations
nilai_rasa_A_3
0 POV_A_30 FFA_A_30
Spearman's rho nilai_rasa_A_30 Correlation Coefficient 1,000 -,879** -,954**
Sig. (2-tailed) . ,009 ,001
N 7 7 7
Correlations
waktu_30 Oksigen_A_30
waktu_30 Pearson Correlation 1 ,860*
Sig. (2-tailed) ,013
N 7 7
28
Correlations
nilai_rasa_A_3
0 POV_A_30 FFA_A_30
Spearman's rho nilai_rasa_A_30 Correlation Coefficient 1,000 -,879** -,954**
Sig. (2-tailed) . ,009 ,001
N 7 7 7
**. Correlation is significant at the 0.01 level (2-tailed).
Lampiran 3. Korelasi pearson produk susu bubuk tipe-B suhu penyimpanan 30°C
Correlations
waktu_30
Nilai_Rasa_B_3 0
Spearman's rho waktu_30 Correlation Coefficient 1,000 -,954**
Sig. (2-tailed) . ,001
N 7 7
**. Correlation is significant at the 0.01 level (2-tailed).
Correlations
waktu_30 POV_B_30 FFA_B_30
waktu_30 Pearson Correlation 1 ,859* ,286
Sig. (2-tailed) ,013 ,535
N 7 7 7
**. Correlation is significant at the 0.01 level (2-tailed). *. Correlation is significant at the 0.05 level (2-tailed).
Correlations
waktu_30 Wettability_B_30
waktu_30 Pearson Correlation 1 ,901**
Sig. (2-tailed) ,006
N 7 7
**. Correlation is significant at the 0.01 level (2-tailed).
Correlations
waktu_30 oksigen_B_30
waktu_30 Pearson Correlation 1 ,577
Sig. (2-tailed) ,175
29
Correlations
Nilai_Rasa_B_3
0 POV_B_30 FFA_B_30
Spearman's rho Nilai_Rasa_B_30 Correlation Coefficient 1,000 -,711 -,225
Sig. (2-tailed) . ,073 ,628
N 7 7 7
Lampiran 4.Koefisien korelasi produk susu bubuk tipe-A suhu penyimpanan 40°C
Correlations
waktu_40 nilai_rasa_A_40
Spearman's rho waktu_40 Correlation Coefficient 1,000 -,802*
Sig. (2-tailed) . ,030
N 7 7
*. Correlation is significant at the 0.05 level (2-tailed).
Correlations
waktu_40 POV_A_40 FFA_A_40
waktu_40 Pearson Correlation 1 ,878** ,956**
Sig. (2-tailed) ,009 ,001
N 7 7 7
*. Correlation is significant at the 0.05 level (2-tailed). **. Correlation is significant at the 0.01 level (2-tailed).
Correlations
waktu_40 Wettability_A_40
waktu_40 Pearson Correlation 1 ,909**
Sig. (2-tailed) ,005
N 7 7
**. Correlation is significant at the 0.01 level (2-tailed).
Correlations
waktu_40 oksigen_A_40
waktu_40 Pearson Correlation 1 ,475
Sig. (2-tailed) ,281
30
Correlations
nilai_rasa_A_4
0 POV_A_40 FFA_A_40
Spearman's rho nilai_rasa_A_40 Correlation Coefficient 1,000 -,802* -,802*
Sig. (2-tailed) . ,030 ,030
N 7 7 7
*. Correlation is significant at the 0.05 level (2-tailed).
Lampiran 5. Koefisien korelasi produk susu bubuk tipe-B suhu penyimpanan 40°C
Correlations
waktu_40
Nilai_Rasa_B_4 0
Spearman's rho waktu_40 Correlation Coefficient 1,000 -,866*
Sig. (2-tailed) . ,012
N 7 7
*. Correlation is significant at the 0.05 level (2-tailed).
Correlations
waktu_40 POV_B_40 FFA_B_40
waktu_40 Pearson Correlation 1 ,856* ,868*
Sig. (2-tailed) ,014 ,011
N 7 7 7
*. Correlation is significant at the 0.05 level (2-tailed).
Correlations
waktu_40 Wettability_B_40
waktu_40 Pearson Correlation 1 ,932**
Sig. (2-tailed) ,002
N 7 7
31 Correlations
waktu_40 oksigen_B_40
waktu_40 Pearson Correlation 1 ,632
Sig. (2-tailed) ,127
N 7 7
Correlations
Nilai_Rasa_B_4
0 POV_B_40 FFA_B_40
Spearman's rho Nilai_Rasa_B_40 Correlation Coefficient 1,000 -,866* -,655
Sig. (2-tailed) . ,012 ,110
N 7 7 7
*. Correlation is significant at the 0.05 level (2-tailed).
Lampiran 6. Koefisien korelasi produk susu bubuk tipe-A suhu penyimpanan 50°C
Correlations
waktu_50 nilai_rasa_A_50
Spearman's rho waktu_50 Correlation Coefficient 1,000 -,791*
Sig. (2-tailed) . ,034
N 7 7
*. Correlation is significant at the 0.05 level (2-tailed).
Correlations
waktu_50 POV_A_50 FFA_A_50
waktu_50 Pearson Correlation 1 ,904** ,842*
Sig. (2-tailed) ,005 ,017
N 7 7 7
*. Correlation is significant at the 0.05 level (2-tailed). **. Correlation is significant at the 0.01 level (2-tailed).
Correlations
waktu_50 Wettability_A_50
waktu_50 Pearson Correlation 1 ,845*
Sig. (2-tailed) ,017
N 7 7
32
Correlations
waktu_50 oksigen_A_50
waktu_50 Pearson Correlation 1 ,334
Sig. (2-tailed) ,464
N 7 7
Correlations
nilai_rasa_A_5
0 POV_A_50 FFA_A_50
Spearman's rho nilai_rasa_A_50 Correlation Coefficient 1,000 -,791* -,791*
Sig. (2-tailed) . ,034 ,034
N 7 7 7
*. Correlation is significant at the 0.05 level (2-tailed).
Lampiran 7. Koefisien korelasi produk susu bubuk tipe-B suhu penyimpanan 50°C
Correlations
waktu_50
Nilai_Rasa_B_5 0
Spearman's rho waktu_50 Correlation Coefficient 1,000 -,791*
Sig. (2-tailed) . ,034
N 7 7
*. Correlation is significant at the 0.05 level (2-tailed).
Correlations
waktu_50 POV_B_50 FFA_B_50
waktu_50 Pearson Correlation 1 ,724 ,663
Sig. (2-tailed) ,066 ,104
N 7 7 7
*. Correlation is significant at the 0.05 level (2-tailed).
Correlations
waktu_50
Wettability_B_5 0
waktu_50 Pearson Correlation 1 ,933**
Sig. (2-tailed) ,002
N 7 7
33
Correlations
waktu_50 oksigen_B_50
waktu_50 Pearson Correlation 1 ,791*
Sig. (2-tailed) ,034
N 7 7
*. Correlation is significant at the 0.05 level (2-tailed).
Correlations
Nilai_Rasa_B_5
0 POV_B_50 FFA_B_50
Spearman's rho Nilai_Rasa_B_50 Correlation Coefficient 1,000 -,638 -,632
Sig. (2-tailed) . ,123 ,127
34
Lampiran 8. Form IDF
Lampiran 10. Alat Wettability
Lampiran 11. Alat Spektrofotometer DR 2800
35