PENGARUH SUBSTITUSI DAUN KEJI BELING (Strobilanthes crispus) TERHADAP MUTU TEH DAUN KELOR

Abstrak

ABSTRAK: Penelitian ini bertujuan untuk mengetahui pengaruh substitusi daun keji beling terhadap mutu teh daun kelor. Parameter mutu yang digunakan mutu kimia yaitu pH; padatan terlarut; kadar air; kadar abu; aktivitas antioksidan; mutu mikrobiologik: angka lempeng total dan kapang khamir; serta nilai hedonik dari warna, aroma, rasa, dan penerimaan umum. Hasil penelitian menunjukkan bahwa substitusi daun keji beling terhadap teh daun kelor memberikan pengaruh beda nyata dengan taraf signifikansi α=0,05 terhadap semua parameter mutu kimia; angka lempeng total serta nilai hedonik warna, mutu hedonik dan nilai hedonik aroma, mutu hedonik dan nilai hedonik rasa, serta nilai hedonik penerimaan umum dan memberikan pengaruh berbeda tetapi tidak nyata pada mutu mikrobiologik kapang khamir dan mutu hedonik warnapada taraf α = 0,05. Produk terbaik yaitu teh daun kelor dengan substitusi daun keji beling 15% yang memiliki karakteristik mutu kimia berupa pH 7,52; padatan terlarut 1,97%; kadar air 9,44%(b/b); kadar abu 6,52%(b/b); aktivitas anitioksidan IC₅₀ sebesar 5,52 ppm serta mutu mikrobiologik ALT 0 (cfu/mL) dan kapang khamir 0 koloni/g. Selain itu, berdasarkan uji hedonik teh daun kelor memiliki karakteristik warna cokelat agak kekuningan (4,3), aroma agak langu (4,4), rasa hampir tidak sepat (4,5) dan secara umum disukai (4,6), serta memiliki nilai kadar tanin sebesar 0,57%.  
ABSTRACT: The objective of this study was to determine the effect substitution of Strobilanthes crispus leaves on the quality of moringa leaves tea and to know the treatment of subtitution which can make the best quality of moringa leaves tea. The quality parameters studied were chemical quality include pH, water content, total solid, ash content, and antioxidant activity; microbiology quality include TPC and mould-yeast; while the organoleptic test include hedonic quality and hedonic score (likeness) of color, smell, taste, and overall acceptance. The results showed moringa leaves tea was significant difference at α=0,05 in all of parameters chemical quality;microbiology quality (TPC) and organoleptic quality hedonic score of color, hedonic quality and hedonic score of smell, taste, and overall acceptance), and was not significant difference at α=0.05 in mould-yeast and hedonic quality of color. The results showed the best quality of moringa leaves tea was with 15% substitution of Strobilanthes crispus leaves with the following characteristics: pH 7,52; water content 9,44%(b/b); total solid 1,97%; ash content 6,52%(b/b); antioxidant activity IC50 5,52 ppm; TPC and yeast-mould zero coloni/g; hedonic score of color 4,3; smell 4,4; taste 4,5 and overall acceptance 4,6; and tannin content 0,57%.