Author: Laura Reusche

Bitter Eggplant: Recipe and Project Pamphlets

1st Edition: A Taste of Bitter Eggplants

Acknowledgements 1st Edition: A Taste of Bitter Eggplants

Authors
Aria Larsen, Finn Parent-Goebel, Laura Reusche
Logo                   
Emerson Gregorio
Photos
Aria Larsen
Recipes  
Ben Hunsdorfer, Jongmu Lepcha, Aria Larsen 
References
1. Dyer, S.,(2024). Replicated variety trial of Solanum aethiopicum gilo: design and theory into practice https://sites.evergreen.edu/grf24/2024/06/06/replicated-variety-trial-of-solanum-aethiopicum-gilo-design-and-theory-into-practice/
2. Han, M., Opoku KN, Bissah NAB, Su T. Solanum aethiopicum: The   Nutrient-Rich Vegetable Crop with Great Economic, Genetic Biodiversity and Pharmaceutical Potential. Horticulturae. 2021; 7(6):126. https://doi.org/10.3390/horticulturae7060126
3. Johnny’s Selected Seeds. (2019). https://www.johnnyseeds.com/ 
4. North Circle Seeds. (2024). https://northcircleseeds.com/ 
5. Thresh Seed Co. (2024). https://www.threshseed.com/ 
Student Researchers
Harry Daniels, Sarah Dyer, Oonaugh Foster-Bill, Emerson Gregorio, Aria Larsen, Finn Parent-Goebel, Laura Reusche, Aaron Valva

2nd Edition: Bitter Eggplants in the Field

Acknowledgements 2nd Edition: Bitter Eggplants in the Field

Author
Laura Reusche
Logo                   
Emerson Gregorio
Photos
Finn Parent-Goebel, Laura Reusche 
Recipes  
Harry Daniels, Sarah Dyer
References
1. Dyer, S., (2024). Replicated variety trial of Solanum aethiopicum gilo: design and theory into practice https://sites.evergreen.edu/grf24/2024/06/06/replicated-variety-trial-of-solanum-aethiopicum-gilo-design-and-theory-into-practice/
2. Johnny’s Selected Seeds. (2019). https://www.johnnyseeds.com/ 
3. North Circle Seeds. (2024). https://northcircleseeds.com/ 
4. Thresh Seed Co. (2024). https://www.threshseed.com/ 
Student Researchers
Harry Daniels, Sarah Dyer, Oonaugh Foster-Bill, Emerson Gregorio, Aria Larsen, Finn Parent-Goebel, Laura Reusche, Aaron Valva

Observing the cultural crop, ‘Bitter Tomato’, and its significance in Tanzania, Africa.

NATIONAL PARK REGION- SERENGETI

East Serengeti.

Throughout the Serengeti, I stayed at three different tourist camp locations: East at a private reserve, North near Mara River, and Central Serengeti. The Serengeti National Park exists on stolen land, home to local tribes such as the Maasai. Maasai people have been persistent inhabitants for immemorial existence before the designation of a national park and government control of the land; the Maasai still remain active participants of land stewardship around both the Serengeti and Ngorongoro regions, although, they till face the oppression of ongoing colonialism.

CONSERVATION AREA- NGORONGORO CRATER

I spent time in the surrounding area of Ngorongoro Crater at an agri-tourism site, Gibb’s Farm. Gibb’s farm is a transformed coffee plantation, now a diverse organic farm residing in Karatu, Tanzania. This lands exists with gratitude to surrounding tribes such as the Maasai and Iraqw. Both Maasai and Iraqw are agriculture centric communities. Herds of cattle, sheep, and goats are necessity to Maasai wealth. Iraqw people rely on land for producing a variety of fruits and vegetables along with some cattle.

Wild Relatives of Eggplant

While on a walk with two people from the local Maasai community, Dickson and William, we came across the bitter fruit, Solanum incanum.I was told Maasai slice this fruit and use it for tooth aches, and it has an extremely bitter taste. 

I immediately recognized similar botanical features of Solanum incanumto Solanum aethiopicum. I observed similar leaf shape, flower, and fruit. Leafs velvety with small hairs, petiolate, pinnately veined with shallow lobed margins and ovate blades. Inflorescences have 5 petaled flowers, with superior reproductive organs: anthers surrounding a center pistil. I noticed the downward petals and a protruding center that appears on many Solanaceous crops. 

I kept noticing the similarities between the Solanum incanum and Solanum aethiopicum crops- bitter fruits and botanical anatomy- so, I decided to search the two varieties once I had service. Interestingly, Solanum incanum does appear to be a wild relative to cultivated eggplant(Wikipedia, 2024). Apparently, both species even share the same common name ‘bitter tomato’.

Image comparison of Solanum incanum and Solanum aethiopicum from  Transcriptome analysis and molecular marker discovery in Solanum incanum and S. aethiopicum, two close relatives of the common eggplant (Solanum melongena) with interest for breeding.

As I was researching I came across a genetic analysis between Solanum aethiopicim and Solanum incanum, suggesting interesting interspecific variation.

“. . .the lowest variation was found between S. incanum and S. aethiopicum (15,162 SNVs).”

Gramazio, et al., 2016

Culinary and Cultural Use

I first stumbled upon this crop at dinner when I heard we were having ‘bitter tomato’ with our meal. They were served grilled, whole, with their tops and bottoms sliced off. I asked the camp manager about the bitter tomato naming it an eggplant, he said “no- bitter tomato”. It was clear that ‘bitter tomato’ is the common translation. Then, I asked our tour guide, Hashim, about bitter tomato relating to eggplant species showing him a photo of the Simeon’s White crop that we are cultivating at Evergreen. He confirmed that it is the same crop translated to bitter tomato or ‘nyanya chungu’ in Swahili, also called ‘ngogwe’. He said that the varieties commonly grown appear to be more round rather than oval, and there is likely a variety of modified seeds. Hashim thinks the round fruits are more bitter than ovular fruits. 

In culinary uses, Hashim said bitter tomato is often used as an enhancement, due to the intense bitterness. It’s cooked into stews along with sliced okra, carrots or coconut. And, eaten raw! Similarly, I spoke with chefs, Rebecca and Mariam, who said they often prepare the bitter tomato grilled with oil, salt and pepper, for a side serving at the camp meals. Chefs also said it is commonly cooked in a stew with fatty meats, tomatoes, coconut milk, okra, and other vegetables on hand. The chefs store fruits at room temperature in crates on wire racks. 

In transit between locations, I observed white-yellow cream, circular-ovular, bitter tomatoes in a couple roadside produce stands throughout Tanzania and Rwanda.

The eggplant was prepared similarly at Gibb’s Farm, called ‘Ngogwe’ on the menu. Very similar flavor and texture but this time, sliced in half instead of grilled whole.

Observing Crops at Gibb’s Farm

Solanum aethiopicum was planted at Gibb’s Farm in two locations; it was below tall tamarillo plants, Solanum betaceum; and, near low growing leafy greens (likely mustard greens). I was pleased to see the intercropping techniques, as well as the lengthy branched plants growing without a trellis needed! It’s intriguing that they were still thriving under moderately shady conditions, below another solanaceous crop, tamarillo. Alike elsewhere throughout this trip, these Solanum aethiopicum varieties appeared to be most morphologically similar to the Solanum aethiopicumvar. ‘Simeon’s white’. 

Trip Conclusions

Overall, I am deeply appreciative to have experienced this crop in abundance within its cultural home. Maasai’s knowledge guided the opportunity to identify and learn about the indigenous medicine of Solanum incanum, which lead me to research its potential to be a wild crop relative to Solanum aethiopicum. I saw relationships to its African names such ngogwe, nyanya chungu, and bitter tomato. I observed the cultivation of bitter tomato at an organic farm and passing by local produce stands. I learned from local chefs and eaters about typical culinary uses in the Tanzania region of Africa. While in between travel, I was joyed to engage with this crop through its ancestral history, with the many people who recognize bitter tomato in food, garden, or market routines. This trip leaves me with more questions about the cultivar history and genealogy of this crop, to understand its relation to generations of farmers, wild crop relatives, morphological variation, and bitterness genes.

Resources

  1. Gibb’s Farm
  2. Transcriptome analysis and molecular marker discovery in Solanum incanum and S. aethiopicum, two close relatives of the common eggplant (Solanum melongena) with interest for breeding.
  3. Wikipedia: Ngorongoro Crater Plants
  4. Wikipedia: Solanum incanum

Field Trip to Horseneck Farm and Tukwila Farmer’s Market: August 14th

Evergreen field trip group with Khue, speaker from IRC.

Locations

Horseneck Farm Tour with Kamal Adhikari- Kent, WA

Tukwila Farmers Market and Spice Bridge Food Hall with Khue Tran

Spice Bridge Restaurant- Tukwila, WA

“In an effort to protect the farmland that remained, Horseneck was purchased by King County nearly 40 years ago through the Farmland Preservation Program . . . This lease agreement is the start of a gradual process to use the full acreage and uplift marginalized farmers, while keeping the land in full production.”

2021 King County Green: Horseneck Farm: Preserved for Agriculture Now Increasing-Access For Diverse Growers

Horseneck Farm is managed with a unique collaboration of land leasing between King County nonprofits called Food Access and Aggregation Community Team (FAACT), a network of South King County organizations which includes the Seattle International Rescue Committee (IRC), South King County Food CoalitionElk Run FarmFood Innovation NetworkHighline CollegeLiving Well KentWakulima USA, and Shared Soil. Our trip to Horseneck Farm was guided on an informational tour by Kamal, a coordinator with the IRC. Kamal explained that this site encompasses 6 community gardens, 3 market gardens, and serves 200 people- including families. He said these gardens represent 17+ nations, and majority of gardeners are women. Additionally, the IRC’s “New Roots” program connects farmers with market opportunities in other organizations like Pacific Coast Harvest (PCH) and Farmstand Local Foods. These partnerships have provided both sales opportunities and community benefits like supporting local students with farm fresh produce. The reciprocal nature of this farm to market approach is very profound; for farmers there is the benefit of food sovereignty, economic opportunity, community connection, and mental health support; for community there is the benefit of food sovereignty and affordable produce for marginalized people.

“Food is culture . . . Everyone is a farmer in Bhutan”

Kamal Adhikari

Kamal explained that this space is grant funded, receiving a lot of support from the County. This means, applying for financial support for new infrastructures can be a slower process. Farmers newly have access to a wash station and hope to achieve a cool storage operation, and possibly greenhouse space with support from the County. As of now, Kamal said that farmers can store produce at Cascadia Farm’s cool storage. This visit was truly inspiring and I am hopeful that this land will continue to expand with increasing support for refugees, farmers, and the local community. Bitter eggplant may not be as abundant in the market as other Solanum spp., however visiting with these communities affirms the demand and relevance to grow this crop in the PNW, as it is vital for cultural cuisine.

Sources

  1. Elk Run Farm
  2. Food Access and Aggregation Community Team (FAACT)
  3. Food Innovation Network
  4. Highline College
  5. Horseneck Farm 
  6. IRC: New Roots
  7. King County Farmland Preservation Program
  8. Kezama Farm
  9. Living Well Kent
  10. Nemuna Garden and Kezama LLC: Horseneck Farm
  11. Pacific Coast Harvest (PCH) and Farmstand Local Foods
  12. Seattle International Rescue Committee
  13. South King County Food Coalition
  14. Tukwila Farmers Market
  15. Wakulima USA