Effects of harvest day after first true leaf emergence of broccoli and radish microgreen yield and quality
Microgreens are 7−20-d old young vegetables with rich nutrition. In commercial settings, their harvest time varies after first true leaf emerges. To determine the optimal harvest time, the microgreen yield and quality of broccoli (Brassica oleracea var. italica Plenck) and radish (Rhaphanus sativus...
Saved in:
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Maximum Academic Press
2024-01-01
|
| Series: | Technology in Horticulture |
| Subjects: | |
| Online Access: | https://www.maxapress.com/article/doi/10.48130/tihort-0023-0031 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1849699098910785536 |
|---|---|
| author | Irma Ortiz Xudong Zhu Shirin Shakoomahally Wenyi Wu Olayanju Kunle-Rabiu Ellen R. Turner Tianbao Yang |
| author_facet | Irma Ortiz Xudong Zhu Shirin Shakoomahally Wenyi Wu Olayanju Kunle-Rabiu Ellen R. Turner Tianbao Yang |
| author_sort | Irma Ortiz |
| collection | DOAJ |
| description | Microgreens are 7−20-d old young vegetables with rich nutrition. In commercial settings, their harvest time varies after first true leaf emerges. To determine the optimal harvest time, the microgreen yield and quality of broccoli (Brassica oleracea var. italica Plenck) and radish (Rhaphanus sativus L.), were analyzed after different harvest times. Under hydroponic culture at 25 °C and 16/8 h photoperiod, the first true leaf of broccoli and radish emerged on day 10 and day 7 respectively. Broccoli harvested at day 13 and radish harvested at day 10, showed significantly highest yield and chlorophyll content compared to that of plants harvested on any other day. The microgreen yield was 20% higher when broccoli and radish were harvested at day 13 and day 10 compared to those harvested on earlier days. The overall visual quality of microgreens stored at 4 °C was evaluated for the extent of decay. There was less visible decay for broccoli harvested at day 13 and radish harvested at day 10. Regarding nutrient quality, there was no significant difference for glucosinolates and total phenolics among different harvested days. However, anthocyanins were decreased significantly for radish harvested at day 11. Overall, the results suggest that the best harvest time for radish and broccoli microgreens is when about 75% true leaves emerge. This research will provide microgreen growers a basis for determining the optimal harvest time of microgreens. |
| format | Article |
| id | doaj-art-18f8f88a4c6e42ff8d8aecada909236b |
| institution | DOAJ |
| issn | 2833-4337 |
| language | English |
| publishDate | 2024-01-01 |
| publisher | Maximum Academic Press |
| record_format | Article |
| series | Technology in Horticulture |
| spelling | doaj-art-18f8f88a4c6e42ff8d8aecada909236b2025-08-20T03:18:42ZengMaximum Academic PressTechnology in Horticulture2833-43372024-01-01411910.48130/tihort-0023-0031tihort-0023-0031Effects of harvest day after first true leaf emergence of broccoli and radish microgreen yield and qualityIrma Ortiz0Xudong Zhu1Shirin Shakoomahally2Wenyi Wu3Olayanju Kunle-Rabiu4Ellen R. Turner5Tianbao Yang6Food Quality Laboratory, Beltsville Agricultural Research Center, USDA-ARS, Beltsville, MD 20705, USAFood Quality Laboratory, Beltsville Agricultural Research Center, USDA-ARS, Beltsville, MD 20705, USAFood Quality Laboratory, Beltsville Agricultural Research Center, USDA-ARS, Beltsville, MD 20705, USAFood Quality Laboratory, Beltsville Agricultural Research Center, USDA-ARS, Beltsville, MD 20705, USAFood Quality Laboratory, Beltsville Agricultural Research Center, USDA-ARS, Beltsville, MD 20705, USAFood Quality Laboratory, Beltsville Agricultural Research Center, USDA-ARS, Beltsville, MD 20705, USAFood Quality Laboratory, Beltsville Agricultural Research Center, USDA-ARS, Beltsville, MD 20705, USAMicrogreens are 7−20-d old young vegetables with rich nutrition. In commercial settings, their harvest time varies after first true leaf emerges. To determine the optimal harvest time, the microgreen yield and quality of broccoli (Brassica oleracea var. italica Plenck) and radish (Rhaphanus sativus L.), were analyzed after different harvest times. Under hydroponic culture at 25 °C and 16/8 h photoperiod, the first true leaf of broccoli and radish emerged on day 10 and day 7 respectively. Broccoli harvested at day 13 and radish harvested at day 10, showed significantly highest yield and chlorophyll content compared to that of plants harvested on any other day. The microgreen yield was 20% higher when broccoli and radish were harvested at day 13 and day 10 compared to those harvested on earlier days. The overall visual quality of microgreens stored at 4 °C was evaluated for the extent of decay. There was less visible decay for broccoli harvested at day 13 and radish harvested at day 10. Regarding nutrient quality, there was no significant difference for glucosinolates and total phenolics among different harvested days. However, anthocyanins were decreased significantly for radish harvested at day 11. Overall, the results suggest that the best harvest time for radish and broccoli microgreens is when about 75% true leaves emerge. This research will provide microgreen growers a basis for determining the optimal harvest time of microgreens.https://www.maxapress.com/article/doi/10.48130/tihort-0023-0031food qualitypostharvestphenolicsshelf lifeharvest timebroccoliradishglucosinolate |
| spellingShingle | Irma Ortiz Xudong Zhu Shirin Shakoomahally Wenyi Wu Olayanju Kunle-Rabiu Ellen R. Turner Tianbao Yang Effects of harvest day after first true leaf emergence of broccoli and radish microgreen yield and quality Technology in Horticulture food quality postharvest phenolics shelf life harvest time broccoli radish glucosinolate |
| title | Effects of harvest day after first true leaf emergence of broccoli and radish microgreen yield and quality |
| title_full | Effects of harvest day after first true leaf emergence of broccoli and radish microgreen yield and quality |
| title_fullStr | Effects of harvest day after first true leaf emergence of broccoli and radish microgreen yield and quality |
| title_full_unstemmed | Effects of harvest day after first true leaf emergence of broccoli and radish microgreen yield and quality |
| title_short | Effects of harvest day after first true leaf emergence of broccoli and radish microgreen yield and quality |
| title_sort | effects of harvest day after first true leaf emergence of broccoli and radish microgreen yield and quality |
| topic | food quality postharvest phenolics shelf life harvest time broccoli radish glucosinolate |
| url | https://www.maxapress.com/article/doi/10.48130/tihort-0023-0031 |
| work_keys_str_mv | AT irmaortiz effectsofharvestdayafterfirsttrueleafemergenceofbroccoliandradishmicrogreenyieldandquality AT xudongzhu effectsofharvestdayafterfirsttrueleafemergenceofbroccoliandradishmicrogreenyieldandquality AT shirinshakoomahally effectsofharvestdayafterfirsttrueleafemergenceofbroccoliandradishmicrogreenyieldandquality AT wenyiwu effectsofharvestdayafterfirsttrueleafemergenceofbroccoliandradishmicrogreenyieldandquality AT olayanjukunlerabiu effectsofharvestdayafterfirsttrueleafemergenceofbroccoliandradishmicrogreenyieldandquality AT ellenrturner effectsofharvestdayafterfirsttrueleafemergenceofbroccoliandradishmicrogreenyieldandquality AT tianbaoyang effectsofharvestdayafterfirsttrueleafemergenceofbroccoliandradishmicrogreenyieldandquality |