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Journal : AGRITROP

Pengaruh Suhu Air dan Lama Waktu Perendaman Beberapa Jenis Sayuran Daun pada Proses Crisping SUPARTHA UTAMA, I MADE; AYU NOCIANITRI, KOMANG; RINA PRATIWI PUDJA, IDA AYU
AGRITROP Vol. 26, No. 3 September 2007
Publisher : AGRITROP

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Abstract

The primary cause of wilting in leafy vegetables after harvesting is high intensity of transpiration processthrough natural openings (stomata, hidatoda and lenticels). The mechanism of closing and opening of those naturalopenings is affected by the temperature of the environment. Under high external temperature, the stomata tendto open and vice versa. It is possible to diffuse water into the produce to give a vigorous effect by controlling theexternal temperature and moisture. The process is normally called crisping. The aim of this experiment was tostudy the effectiveness of crisping in order to give vigorous and freshness effects to four different leafy vegetables,namely lettuce, kangkung, leeks and chinese cabbage compared to those without crisping. The crisping processwas involving the immersion of produce in three different water temperatures (30, 40 and 50oC) combined withdifferent lengths of immersion times (1, 3, 5 and 7 minutes) and continued by immediate movement of produce tolow temperature (5±2oC) and stored for 12 hrs before placing and displaying at the show case under temperatureof 10±2oC. Produce treated as controls were provided without immersion in the warm water and stored at roomtemperature, and other was also placed at the show case. The result shows that the effectiveness of crisping dependedupon the physical structure or morphology of the respective vegetables. In general, the water temperatures of 30 and40oC and combined with the lengths of immersion time of 1-3 minutes were effective to improve the freshness andvigorousness of lettuce and leeks, while 7 minutes immersion was effective for kangkung and Chinese cabbage.
Co-Authors A. Nururrochman Hidayatulloh A.A Sagung Laksmi Dewi Adila Anbar Syafitri Agus, Yohanes Hendro Ahmad Atiq Ahmad Hamim Sadewa Aisyah Latifa Amalia Ameliana Safitri Amri, Irman Andri Martoni Andriani, Diyah Iis Ani Heryani Ani Heryani Anna Simatauw Ansharullah ansharullah Aswin Anthon Julius Koenoe Aviantara, I Gusti Ngurah Apriadi Ayu Valentina, Ayu Aziz Purwantoro Bangkit Lutfiaji Syaefullah Basromi Ali Budi Sulistiyo Nugroho Chyntia Wulandari Eka Saputri Destriana, Rachmat Diana Diana Dianatika Azmi Diansanto Prayoga Dilla Hativa Diori Beca Narmalia Malau Djaling, Krisna Wardhana Dori Eka Putra Dyanasari Dyanasari Ebit Bachtiar Eka Supriatna Elok Faiqoh Endah Purwaningsih Endang Fatmawati Endang Sulistyaningsih Ernilasari Ernilasari Fadli Fadli Farida Aeini Fatmawati Fatmawati Fawzi, Ahmad Raldiano Fitria Alda Safira Gede Arda Guna, Kadek Mahendra Adhi Husniati Husniati Husniati Husniati, Husniati I Gusti Ngurah Apriadi Aviantara I Gusti Putu Angga Wira Dananjaya I Kadek Puja Harta Hadi I M. A.S. Wijaya I M. Nada I Made Nada I MADE SUPARTHA UTAMA I Putu Agus Oka Mahendra I Putu Surya Wirawan I Wayan Adi Saputra I Wayan Widia I. A. G. Bintang Madrini Ibrahim Syaifuddin Ida Ayu Agung Putri Trisiana Dewi Ida Ayu Putu Sri Widnyani Ida Bagus Putu Gunadnya Imam Jayanto Indraswari, Thamita Irhamni Irhamni Johanes Paulus Djandon Jr. Juriko Abdussamad KOMANG AYU NOCIANITRI Lukmanul Hakim Marhaeni, Ni Made Yulistiana Muhammad Syahrir Musa Marsel Maipauw Muzakir Ni Ketut Sari Martini Ni Luh Yulianti Ni Made Ayu Manik Suantari Ni Nyoman Puspawati Ni Nyoman Sulastri Ni Putu Nita Lospiani Ni Wayan Prilia Dewi Nur Arif Nugraha Pande Ketut Diah Kencana Priyadi, Dwi Ahmad Rahma Dani Putra Rahmadi Rahmadii Ramendra Wiro Ginting Ratnaningsih, Muliani RH. Fitri Faradilla Ridho Hambali Rika Afriyanti Riski Nirmala Sidabutar Rizky Destian Rochadi Rochadi Rohmad Abidin, Rohmad Rony, Zahara Tussoleha Rustandi Rustandi SATRIYAS ILYAS Sefri Ton Semaraputri, Jessica Heidy Tiku Silmina Adzhani Sri Yulianto Joko Prasetyo Sumiyati Sumiyati SUMIYATI SUMIYATI Surfa Yondri SUWIJIYO PRAMONO Suzanni, Mulia Aria Taufan Taufan Ulianti, Gusti Ayu Putri Mei Vidia Timur Waksi, Fajar wayan T Artama Wayan Tika Widia Sutriani Widiati, Ida Ayu Putu Wijaya, Fef Rama Jaya Wirawan, Vani Wiryatun Lestariana yanti novita Yanuardi Yanuardi Yohanes Setiyo Zuchri Abdussamad