Effect of pre-harvest oxalic acid treatment on physical and chemical properties of leeks stored under market conditions

Mehmet Ali Koyuncu; Derya Erbaş; Hüsnü Ünlü; Halime Ünlü

Article Details

Effect of pre-harvest oxalic acid treatment on physical and chemical properties of leeks stored under market conditions

Authors:

Mehmet Ali Koyuncu | Derya Erbaş | Hüsnü Ünlü | Halime Ünlü

Publisher:

Isparta University of Applied Sciences

Main Topics:

Hasat Sonrası Bahçecilik Teknolojileri (Taşımacılık ve Depolama dahil)

Journal:

Ziraat Fakültesi Dergisi Vol.19 Issue 1, pp.38-47

Document Type:

Article

Publication Date:

6/2024

Document Language:

Turkish

Document ID (Org No.):

2001320456

pISSN:

1304-9984

Keywords:

Abstract:

 In the present study, the effects of pre-harvest oxalic acid OA treatment on the quality of minimally processed leeks during storage under marketing conditions were investigated. For this purpose, leeks were treated with a solution containing 0 control, 1, 2 and 3 mM OA and 0.1 Tween 20 with a pump 6, 4 and 2 weeks before harvest. Leek samples, harvested at optimum stage, were immediately transferred to the laboratory and sorted, washed and minimally processed. After all these treatments, leeks were placed in foam plates and covered with stretch film 12 µ. The packaged leeks were stored at 12  1 C and 905  relative humidity RH for 21 days. The OA treatment decreased weight loss and preserved firmness of minimally processed leeks compared to control. The respiration rate of OA treated leeks was clearly suppressed during storage. Although it was not statistically significant, the OA treatments preserved the visual quality of the leeks relatively better than control samples during storage.The effect of preharvest OA treatment on the color change of leeks except for L value was not cleare. As a result, it was determined that pre-harvest OA treated leeks could be stored for 14 days under marketing conditions 12  1  C and 905  RH.

 In the present study, the effects of pre-harvest oxalic acid OA treatment on the quality of minimally processed leeks during storage under marketing conditions were investigated. For this purpose, leeks were treated with a solution containing 0 control, 1, 2 and 3 mM OA and 0.1 Tween 20 with a pump 6, 4 and 2 weeks before harvest. Leek samples, harvested at optimum stage, were immediately transferred to the laboratory and sorted, washed and minimally processed. After all these treatments, leeks were placed in foam plates and covered with stretch film 12 µ. The packaged leeks were stored at 12  1 C and 905  relative humidity RH for 21 days. The OA treatment decreased weight loss and preserved firmness of minimally processed leeks compared to control. The respiration rate of OA treated leeks was clearly suppressed during storage. Although it was not statistically significant, the OA treatments preserved the visual quality of the leeks relatively better than control samples during storage.The effect of preharvest OA treatment on the color change of leeks except for L value was not cleare. As a result, it was determined that pre-harvest OA treated leeks could be stored for 14 days under marketing conditions 12  1  C and 905  RH.

 In the present study, the effects of pre-harvest oxalic acid OA treatment on the quality of minimally processed leeks during storage under marketing conditions were investigated. For this purpose, leeks were treated with a solution containing 0 control, 1, 2 and 3 mM OA and 0.1 Tween 20 with a pump 6, 4 and 2 weeks before harvest. Leek samples, harvested at optimum stage, were immediately transferred to the laboratory and sorted, washed and minimally processed. After all these treatments, leeks were placed in foam plates and covered with stretch film 12 µ. The packaged leeks were stored at 12  1 C and 905  relative humidity RH for 21 days. The OA treatment decreased weight loss and preserved firmness of minimally processed leeks compared to control. The respiration rate of OA treated leeks was clearly suppressed during storage. Although it was not statistically significant, the OA treatments preserved the visual quality of the leeks relatively better than control samples during storage.The effect of preharvest OA treatment on the color change of leeks except for L value was not cleare. As a result, it was determined that pre-harvest OA treated leeks could be stored for 14 days under marketing conditions 12  1  C and 905  RH.

 Çalışmada derim öncesi oksalik asit OA uygulamasının market koşullarında depolama sırasında minimal işlenmiş pırasaların kalitesi üzerine etkileri incelenmiştir. Bu amaçla içerisinde 0 kontrol, 1, 2 ve 3 mM OA ve  0.1lik Tween-20 içeren çözelti pırasalara tahmini derimden 2, 4 ve 6 hafta önce 3 kez sırt pompası yardımıyla uygulanmıştır. Optimum dönemde derilen pırasalar hızlı bir şekilde laboratuvara nakledilerek önce seçilmiş, yıkanmış ve minimal olarak işlenmiştir. Tüm bu işlemlerden sonra pırasalar köpük kaselere yerleştirilerek üzerleri streç film 12 µ ile kaplanmıştır. Paketlenmiş pırasalar 12 1C ve  905 oransal nemde 21 gün depolanmıştır. OA uygulaması kontrole göre minimal işlenmiş pırasalarda ağırlık kayıplarını azaltmış ve yalancı gövde sertliğini daha iyi korumuştur. Uygulama yapılan pırasalarda depolama boyunca solunum hızı net bir şekilde baskılanmıştır. Her ne kadar istatistik olarak önemli çıkmasa da OA uygulamaları kontrol örneklerine kıyasla depolama süresince pırasaların görsel kalitelerini kısmen daha iyi korumuştur. Derim öncesi OA uygulamasının L değeri dışında pırasaların renk değişimi üzerine bariz bir etkisi olmamıştır. Sonuç olarak, derim öncesi OA uygulanmış pırasaların belirtilen koşullarda 14 gün başarılı bir şekilde depolanabileceği belirlenmiştir.

Article Details

Effect of pre-harvest oxalic acid treatment on physical and chemical properties of leeks stored under market conditions

Authors:

Mehmet Ali Koyuncu | Derya Erbaş | Hüsnü Ünlü | Halime Ünlü

Publisher:

Isparta University of Applied Sciences

Main Topics:

Hasat Sonrası Bahçecilik Teknolojileri (Taşımacılık ve Depolama dahil)

Journal:

Ziraat Fakültesi Dergisi Vol.19 Issue 1, pp.38-47

Document Type:

Article

Publication Date:

6/2024

Document Language:

Turkish

Document ID (Org No.):

2001320456

pISSN:

1304-9984

Allium porrum L

Postharvest

Marketing conditions

Fresh cutAllium porrum L.

Hasat sonu

Market koşulları

Taze kesilmiş

Issues

Article Details

Authors: Mehmet Ali Koyuncu | Derya Erbaş | Hüsnü Ünlü | Halime Ünlü

Publisher: Isparta University of Applied Sciences

Main Topics: Hasat Sonrası Bahçecilik Teknolojileri (Taşımacılık ve Depolama dahil)

Journal: Ziraat Fakültesi Dergisi Vol.19 Issue 1, pp.38-47

Document Type: Article

Publication Date: 6/2024

Document Language: Turkish

Document ID (Org No.): 2001320456

pISSN: 1304-9984

Issues

Authors:

Mehmet Ali Koyuncu | Derya Erbaş | Hüsnü Ünlü | Halime Ünlü

Publisher:

Isparta University of Applied Sciences

Main Topics:

Hasat Sonrası Bahçecilik Teknolojileri (Taşımacılık ve Depolama dahil)

Journal:

Ziraat Fakültesi Dergisi Vol.19 Issue 1, pp.38-47

Document Type:

Article

Publication Date:

6/2024

Document Language:

Turkish

Document ID (Org No.):

2001320456

pISSN:

1304-9984