Effects of Shipping Temperature and Precooling Treatment of Everbearing Strawberry Cultivars ‘Goha’ and ‘Flamenco’ Grown on Highland through Export Simulation

Eum Hyang Lan; Bae Sang Jun; Hwang Dae Keun; Yeoung Young Rog; Hong Sae Jin

doi:10.7235/hort.2014.13091

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2014 Vol.32, Issue 2 Preview Page Next Page

Effects of Shipping Temperature and Precooling Treatment of Everbearing Strawberry Cultivars ‘Goha’ and ‘Flamenco’ Grown on Highland through Export Simulation 모의 수출 실험을 통한 고랭지 사계성 딸기 ‘Goha’와 ‘Flamenco’의 유통 온도 및 예냉 처리효과

30 April 2014. pp. 202-209

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Abstract

This study was conducted to investigate the effects of low temperature shipping condition and precooling treatments (forced air and room cooling) on everbearing strawberry through export simulation of ‘Goha’ and ‘Flamenco’ cultivars. After harvest, it took two days to prepare export procedure such as precooling, sorting, storage, transportation, quarantine and handling, and then everbearing strawberry was carried out shipping at room (20-25°C) or low (8°C) temperature conditions. In the case of shipping at room temperature, weight losses of both cultivars were increased up to 10% after 2 days where ‘Goha’ being 2% higher than that of ‘Flamenco’. In ‘Flamenco’ cultivar, shipping temperature and precooling treatment were not effective in firmness and soluble solids contents during transporting periods. However, in ‘Goha’ cultivar, room cooling treatment and low shipping temperature were effective in maintaining firmness until 4 days after shipping. Especially titratable acidity was affected by shipping temperature (^P ≤ 0.001) and precooling treatments (^P ≤ 0.05) in ‘Goha’ cultivar. Also shipping temperature under 8oC delayed coloring and decay incidence of both strawberry cultivars, and precooling treatments of both forced air and room cooling reduced frequency of decay. The shelf life of everbearing strawberry at low shipping temperature was extended more than 4 days compared with shipping at room temperature. Precooling treatment including forced air or room cooling will be useful for the two cultivars when they are transported at low temperature. In ‘Flamenco’ cultivar, the effect of forced air and room cooling was similar, whereas in ‘Goha’ room cooling was more effective.

Keywords

forced air cooling

low temperature shipping condition

room cooling

본 연구는 사계성 딸기인 ‘Flamenco’와 ‘Goha’ 품종을 이용하여 모의수출을 실시함으로써 사계성 딸기의 수출 시 저온유통 및 예냉기술의 필요성을 제안하고자 하였다. 과실을 수확한 다음 예냉, 선별, 저장, 운송, 검역 및 하역작업에 소요된 기간인 2일 경과 후부터 상온과 저온의 조건에서 유통을 실시하였다. 상온 유통은 ‘Flamenco’와 ‘Goha’ 품종 모두 유통기간 1일이 경과된 후 무게손실률이 크게 증가하여 2일 경과 후 10% 정도로 증가하였으며, ‘Goha’ 품종이 ‘Flamenco’ 품종에 비해서 2% 가량 중량 감모율이 높았다. ‘Flamenco’ 품종은 예냉처리 유무 및 상온과 저온 유통기간 동안 경도와 가용성 고형물의 함량 변화가 없는 반면, ‘Goha’ 품종은 차압식 예냉처리에서 상온 및 저온 유통기간 동안 경도의 감소폭이 컸고 저장 4일 경과 후에는 통풍식 예냉 및 저온유통에서 경도유지에 효과적이었다. 적정산도는 두 품종 모두 유통기간 동안 유지되거나 오히려 증가하는 양상을 보이며, 특히 ‘Goha’ 품종에서 유통온도(^P ≤ 0.001) 및 예냉처리 유무(^P ≤ 0.05)가 적정산도에 영향을 미쳤다. 저온 유통은 딸기의 착색 및 곰팡이 발생을 지연시키는데 효과적이며, 예냉처리에 의해서 곰팡이 발생빈도를 낮출 수 있었다. 수출용 사계성 딸기의 8°C 이하의 저온에서는 유통기간이 4일 이상 연장되며, 차압식 예냉과 통풍식 예냉의 실시는 저온유통을 실시할 경우 효과적이었다. 품종별 예냉처리 효과는 ‘Flamenco’ 품종은 차압식 예냉과 통풍식 예냉이 유사한 반면, 국내 육성종인 ‘Goha’ 품종은 통풍식 예냉의 효과가 좋았다.

키워드

차압식 예냉

저온 유통조건

통풍식 예냉

References

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Information

Publisher :KOREAN SOCIETY FOR HORTICULTURAL SCIENCE
Publisher(Ko) :한국원예학회
Journal Title :Horticultural Science and Technology
Journal Title(Ko) :원예과학기술지
Volume : 32
No :2
Pages :202-209
Received Date : 2013-06-07
Revised Date : 2014-01-23
Accepted Date : 2014-02-05
DOI :https://doi.org/10.7235/hort.2014.13091

Horticultural Science and Technology 원예과학기술지 ISSN:1226-8763(Print) 2465-8588(Online)

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