Appendix. Preliminary Research s Results Saline Tofu chips Concentration Color Aroma Taste Crispiness Overall.5 %.84 3.5 3.48 3.64 3.08 5 % 3.6 3.5 3.68 3.64 3.6 7.5 % 3.5 3.79 4.4 3.88 3.64 Explanation on rank scores: : dislike - definitely : dislike - mildly 3 : neither like nor dislike 4 : like - mildly 5 : like - definitely Average score 4.5 4 3.5 3.5.5 0.5 0 Color Aroma Taste Crispiness Overall Parameters.5% 5% 7.5% 46
Appendix. Preliminary Research s Sensory Analysis Questionnaire Form KUISIONER UJI ORGANOLEPTIK KERIPIK TAHU Nama : Umur : Jenis kelamin : Waktu pelaksanaan : Di hadapan Anda tersedia 3 buah sampel keripik tahu. Anda diminta untuk memberikan penilaian terhadap warna, aroma, rasa, kerenyahan, dan keseluruhannya. Penilaian diberikan dengan menuliskan angka pada kolom yang telah disediakan dengan kriteria ranking penilaian yang telah ditentukan. Ranking Warna Aroma Rasa Kerenyahan Overall Sangat Tidak Suka Sangat Tidak Suka Sangat Tidak Suka Sangat Tidak Suka Sangat Tidak Suka Tidak Suka Tidak Suka Tidak Suka Tidak Suka Tidak Suka 3 Cukup Suka Cukup Suka Cukup Suka Cukup Suka Cukup Suka 4 Suka Suka Suka Suka Suka 5 Sangat Suka Sangat Suka Sangat Suka Sangat Suka Sangat Suka Sampel Warna Aroma Rasa Kerenyahan Overall 38 47 69 Terima Kasih Atas Partisipasi Anda 47
Appendix 3. Primary Research s Sensory Analysis Questionnaire Form KUISIONER UJI ORGANOLEPTIK KERIPIK TAHU Nama : Usia : Jenis kelamin : Waktu pelaksanaan : Di hadapan Anda tersedia sampel kerupuk tahu. Anda diminta untuk memberikan penilaian organoleptik berdasarkan tingkat kesukaan terhadap warna, aroma, kerenyahan, dan keseluruhan (overall). Sampel tidak untuk dikonsumsi. Kriteria penilaian :. Sangat tidak suka. Tidak suka 3. Agak suka 4. Suka 5. Sangat suka Sampel Warna Aroma Kerenyahan Overall 46 38 49 593 68 486 86 95 753 374 64 97 Terima Kasih Atas Partisipasi Anda Semoga Tuhan memberkati 48
Appendix 4. Formaldehyde Standard Curve 0.8 0.7 0.6 y = 0.0634x - 0.0008 R = 0.999 0.630 absorbation 0.5 0.4 0.3 0. 0. 0.575 0.3745 0.438 0.38 Series Linear (Series) Linear (Series) 0 0 0 4 6 8 0 concentration The formaldehyde standard curve formed linear line with following equation: Y = 0.0634X - 0.0008 Where Y is the absorbation value of spechtrophotometer. Formaldehyde concentration = X dilution factor 49
Appendix 5. Descriptive Statistics of Moisture Content Moisture_content_Cabinetdrying NF- time 0h NF- time h NF- time h NF- time 3h NF- tofu chips F- time 0h F- time h F- time h F- time 3h F- tofu chips NF- time 0h NF- time h NF- time h NF- time 3h NF- tofu chips F- time 0h F- time h F- time h F- time 3h F- tofu chips Total Descriptives 95% Confidence Interval for Mean N Mean Std. Deviation Std. Error Lower Bound Upper Bound Minimum Maximum 6 8,0750,53964,03 8,5086 8,643 8,6 8,77 6 3,7,8803,35938 3,48 33,0959 3,40 33,33 6 3,5940,03853,4398,504 4,6839,8 5,04 6 8,3334,33754,3780 7,979 8,6876 7,88 8,9 6,759,56,0470,6383,8800,66,93 6 8,343,34,09436 80,997 8,4769 80,9 8,49 6 33,398,0978,904 3,078 35,709 30,79 36,4 6,9889,0375,46 0,905 3,077 0,9 3,90 6 6,7339,69460,8357 6,0050 7,468 6,6 8,05 6,794,0650,04348,676,84,6,86 6 8,847,33345,363 80,8347 8,5346 80,95 8,6 6 34,436,54,4950 3,87 35,46 33,6 35,69 6 4,608,4635,583 3,3 6,050 3,58 6,98 6 7,3975,68869,86 6,6747 8,0 6,66 8,0 6,537,0789,03,4309,5965,4,63 6 8,4770,370,595 8,0864 8,8676 8,4 8,94 6 3,700,87937,7675 30,977 34,43 9,94 35,6 6 3,506,9746,5969,590 4,88,63 5,7 6 6,5406,44078,7995 6,078 7,003 6,07 7, 6,695,058,0447,5886,808,53,8 0 7,63 9,8450,67330,9697 3,5565,53 8,77 50
Appendix 6. Descriptive Statistics of Formaldehyde Content Descriptives Formalin Cabinet-Tofu Solar Tunnel -Tofu Sun - Tofu Cabinet -Tofu Solar Tunnel - Tofu Sun - Tofu Cabinet - Dried Tofu Sun - Dried Tofu Cabinet - Dried Tofu Sun - Dried Tofu Sun - Tofu Chips Sun-Tofu Chips Total 95% Confidence Interval for Mean N Mean Std. Deviation Std. Error Lower Bound Upper Bound Minimum Maximum 6 794,56833 0,74593 4,38537 783,957 805,84094 778,090 806,0 6 794,56833 0,74593 4,38537 783,957 805,84094 778,090 806,0 6 794,56833 0,74593 4,38537 783,957 805,84094 778,090 806,0 6 607,7833 4,8804 6,04730 59,7335 6,834 586,860 630,780 6 607,7833 4,8804 6,04730 59,7335 6,834 586,860 630,780 6 607,7833 4,8804 6,04730 59,7335 6,834 586,860 630,780 6 53,93507,3894,9783 5,43433 56,4358 50,943 57,37 6 78,5557 8,93435 3,64743 69,797 87,937 66,96 93,77 6 378,776 6,777005 0,93667 350,664 406,8790 349,33 406,8 6 5,5803 4,076300,6644,304 9,85805,770 3,594 6 4,93003 7,807,934 34,3977 49,46730 30,345 5,40 6 350,585 4,9535,006636 345,35463 355,6708 343,40 357,539 6 8,9588,050035,48675 8,85688 84,06077 8,47 84,06 6 9,88,56938,4738 90,0468 9,4494 89,839 93,03 6 05,4467,346764,95806 0,9689 07,88745 0,30 07,85 6 7,4589,503085,6363 69,56850 7,738 69,64 73,584 6 84,54347,03553,830888 8,40760 86,67933 8,460 87,350 6 00,864,377884,5659 99,464 0,3084 98,666 0,68 08 359,49637 63,988 5,395895 309,597 409,84077 69,64 806,0 5
Appendix 7. Descriptive Statistics of Crispiness Descriptives Crispiness - NF - NF - F Sun - Dried Tofu - F - F Sun - Dried tofu - F Total 95% Confidence Interval for Mean N Mean Std. Deviation Std. Error Lower Bound Upper Bound Minimum Maximum 6 3,89900,034647,0444 3,8664 3,93536 3,846 3,945 6 3,6397,048006,09598 3,58879 3,68955 3,587 3,70 6,47700,08463,034550,3889,5658,345,60 6 3,967,046,00578 3,930 3,9403 3,93 3,946 6 3,7000,00545,004305 3,69093 3,7307 3,688 3,79 6,4533,03365,0378,4605,4866,40,489 6 7,3950,5998,047356 7,777 7,363 7,064 7,389 6 6,77,09364,007905 6,7085 6,7449 6,703 6,756 6 6,06067,05598,0575 6,0063 6,870 5,98 6,5 6 7,547,060436,04673 7,9074 7,3759 7,64 7,338 6 6,70500,0533,073 6,6494 6,76086 6,66 6,775 6 6,08033,00373,00837 6,05895 6,07 6,048 6,03 7 5,0304,76955,08540 4,597 5,4886,345 7,389 5
Appendix 8. Normality Test Results of Formaldehyde Content Formalin Treatment Cabinet-Tofu Solar Tunnel -Tofu Sun - Tofu Cabinet -Tofu Solar Tunnel - Tofu Sun - Tofu Cabinet - Dried Tofu Sun - Dried Tofu Cabinet - Dried Tofu Sun - Dried Tofu Sun - Tofu Chips Tests of Normality Kolmogorov-Smirnov a Shapiro-Wilk Statistic df Sig. Statistic df Sig.,39 6,00*,930 6,58,39 6,00*,930 6,58,39 6,00*,930 6,58,4 6,00*,943 6,687,4 6,00*,943 6,687,4 6,00*,943 6,687,0 6,00*,956 6,788,89 6,00*,96 6,83,47 6,00*,85 6,097,87 6,00*,897 6,355,39 6,00*,947 6,75,09 6,00*,968 6,879,54 6,00*,878 6,60,4 6,00*,975 6,9,40 6,00*,887 6,303,56 6,00*,93 6,599,6 6,00*,94 6,679 Sun-Tofu Chips,87 6,00*,970 6,894 *. This is a lower bound of the true significance. a. Lilliefors Significance Correction 53
Appendix 9. Normality Test Results of Crispiness Crispiness Treatment - NF - NF - F Sun - Dried Tofu - F - F Tests of Normality Kolmogorov-Smirnov a Shapiro-Wilk Statistic df Sig. Statistic df Sig.,66 6,00*,978 6,940,00 6,00*,907 6,45,90 6,00*,976 6,99,8 6,00*,863 6,99,04 6,00*,968 6,877,96 6,00*,98 6,564,7 6,00*,98 6,960,5 6,00*,887 6,303,79 6,00*,945 6,70,85 6,00*,983 6,966,08 6,00*,964 6,848 Sun - Dried tofu - F,47 6,00*,958 6,80 *. This is a lower bound of the true significance. a. Lilliefors Significance Correction 54
Appendix 0. Post Hoc Test Results of Formaldehyde Content Duncan a Treatment Sun-Tofu Chips Sun - Tofu Chips Cabinet - Dried Tofu Cabinet - Dried Tofu Sun - Dried Tofu Sun - Dried Tofu Cabinet -Tofu Solar Tunnel - Tofu Sun - Tofu Cabinet-Tofu Solar Tunnel -Tofu Sun - Tofu Sig. 6 7,4589 6 8,9588 8,9588 6 84,54347 Means for groups in homogeneous subsets are displayed. a. Uses Harmonic Mean Sample Size = 6,000. 6 9,88 9,88 6 00,864 00,864 6 05,4467 Formalin Subset for alpha =.05 N 3 4 5 6 7 8 9 0 6 5,5803 6 4,93003 6 53,93507 6 78,5557 6 350,585 6 378,776 6 607,7833 6 607,7833 6 607,7833 6 794,56833 6 794,56833 6 794,56833,050,94,09,446,000,000,000,000,000,000,000,000 55
Appendix. Post Hoc Test Results of Crispiness Duncan a Treatment - NF - NF Sun - Dried Tofu - F Sun - Dried tofu - F - F - F Sig. 6,4533 6,47700 Crispiness 6 3,6397 6 3,7000 6 3,89900 6 3,967 Means for groups in homogeneous subsets are displayed. a. Uses Harmonic Mean Sample Size = 6,000. Subset for alpha =.05 N 3 4 5 6 6 6,06067 6 6,08033 6 6,70500 6 6,77 6 7,3950 6 7,547,40,05,393,536,589,644 56