PENGARUH KONSENTRASI DAN WAKTU APLIKASI CaCl2 TERHADAP FISIKOKIMIA BUAH TOMAT (Lycopersicum esculentum Mill.)

Abstract

Tomato was classified as a climacteric fruit with a fast ripening period andthen followed by the increase of fruit softening. The inhibition of fruit softening was needed to maintain the quality and shelf life of the fruit. One of the way to inhibit the tomatoes softening was calcium application. However, the best concentration and timing of calcium application for tomato was still limited. The aimed of research was to determine the best combination of concentration and time of application of calcium chloride (CaCl2) to the physicochemical of tomato. Experiment was arranged in factorial completely randomized design (CRD) with two factors and three replications. First factor was concentration of CaCl2 which consisted of 5 levels (0 M; 0.3 M; 0.6 M; 0.9 M; 1.2 M), while the second factor was application time of CaCl2 (pre- and post-harvesting). The results showed that there was no interaction between concentration and application time of CaCl2 to the physicochemical of tomatoes. Treatment of CaCl2 1.2 M could increased fruit calcium content, inhibited weight loss and fruit softness, increased total titrated acid content, and inhibited the degradation of vitamin C. The application time of CaCl2 in pre- and post-harvest was not significantly different in term of physicochemical properties. Keywords: fruit softness, quality, weight loss, shelf life, vitamin C

Pengkayaan CaCl2 pada Nutrisi Hidroponik untuk Meningkatkan Hasil Tanaman Kailan (Brassica oleraceae L.)

“…Bentuk kalsium yang dapat diaplikasikan pada pemupukan tanaman adalah kalsium klorida (CaCl2) (Munandar et al 2020) baik dengan metode penyemprotan atau aplikasi langsung pada irigasi tanaman. Kalsium klorida yang ditambahkan pada nutrisi hidroponik dapat berkonstribusi dalam memperkokoh jaringan tanaman (Wulandari et al 2019), mempercepat pertumbuhan akar sehingga dapat memaksimumkan penyerapan nutrisi, dan dapat meningkatkan bobot tanaman (Rohmaniyah et al 2015). Kalsium juga dapat berperan sebagai pelindung dari cekaman hama dan penyakit tanaman (Ernawati et al 2019) serta mampu meningkatkan pH tanah, memperbaiki ketegaran tanah (Nurjanah et al 2017), serta menjadi salah satu unsur penting yang dapat memperbaiki kualitas buah, terutama pada kekerasan buah (Wulandari et al 2019) sehingga akan mempertahankan buah dari kerusakan fisiologis (Ranjbar et al 2018).…”

“…Kalsium klorida yang ditambahkan pada nutrisi hidroponik dapat berkonstribusi dalam memperkokoh jaringan tanaman (Wulandari et al 2019), mempercepat pertumbuhan akar sehingga dapat memaksimumkan penyerapan nutrisi, dan dapat meningkatkan bobot tanaman (Rohmaniyah et al 2015). Kalsium juga dapat berperan sebagai pelindung dari cekaman hama dan penyakit tanaman (Ernawati et al 2019) serta mampu meningkatkan pH tanah, memperbaiki ketegaran tanah (Nurjanah et al 2017), serta menjadi salah satu unsur penting yang dapat memperbaiki kualitas buah, terutama pada kekerasan buah (Wulandari et al 2019) sehingga akan mempertahankan buah dari kerusakan fisiologis (Ranjbar et al 2018). Tidak hanya itu, unsur kalsium berperan penting dalam mempertahankan aktivitas antioksidan total selama penyimpanan (Bagheri et al 2015).…”

Physical Quality of Fresh Cayenne Pepper (Capsicum frutescens L.) with Different Types of Packaging during Low Temperature Storage

“…The value of a indicates the chromatic color of the red-green mixture, namely, +a* which indicates red with a value of 0 to 60, while -a* indicates a green color with a value of 0 to -60 (Wulandari, 2019). Figure 6 presents the chroma a value of cayenne pepper during storage with various types of packaging.…”

“…The b* value indicates a mixed blue-yellow chromatic color, namely, +b* which indicates yellow with a value of 0 to 60, while -b* indicates blue with a value of 0 to -60 (Wulandari, 2019). Figure 7 shows the b* value of cayenne pepper due to variations in the type of packaging and storage time.…”

The effect of calcium chloride and sodium benzoate on CPO quality of oil palm fruit (Elaeis guineensis Jacq.) as a source of food and biofuels

“…The concentration of 3000 ppm is the best concentration on the variables of FFA content, moisture and impurities content. The research of [8] stated that the application of calcium chloride to tomato plants effectively inhibited fruit softening and shrinkage. A concentration of 1.2 M CaCl2 can suppress the softness and shrinkage of tomatoes.…”